MathKit

Proportion Calculator

Given a:b = c:x, compute x = (b × c) ÷ a.

Calculator

Proportion Calculator

Result

—

Formula

x = (B × C) ÷ A

Step-by-step

  1. 1

    Enter A, B, C

    Provide the known ratio a:b and the value c.

  2. 2

    Compute x

    Calculate x using x = (B × C) ÷ A.

Worked example

Example input: a: 2, b: 3, c: 4

Result: 6

Related tools

Useful links