Math
Complex number modulus
Find the distance of a complex number from the origin of the complex plane.
Calculators / Math / Inverse variation
Inverse variation calculator
Find an inversely proportional value from one known x and y pair.
On this page
Variation constant12
Target y4
Calculator controls
How to calculate
Find an inversely proportional value from one known x and y pair.
Variation constant = x*y; Target y = x*y/t
Worked example
Known x: 2; Known y: 6; Target x: 3.
Variation constant: 12 ; Target y: 4 .
Assumptions and limits
Assumes xy = k. Known x and target x must be nonzero; the result is not a statistical fit.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Find an inversely proportional value from one known x and y pair.
When this tool is useful
Variation constant = x*y; Target y = x*y/t
Understanding your inputs
| Input | What to enter |
|---|---|
| Known x | Enter a number of at least -1000000000000 and no more than 1000000000000. |
| Known y | Enter a number of at least -1000000000000 and no more than 1000000000000. |
| Target x | Enter a number of at least -1000000000000 and no more than 1000000000000. |
Frequently asked questions
What assumptions does this calculation use?
Assumes xy = k. Known x and target x must be nonzero; the result is not a statistical fit.
How is the result calculated?
Variation constant = x*y; Target y = x*y/t