Rule of three calculator
Direct proportion solver: if A relates to B, then C relates to X.
Find the unknown in a proportional relationship.
Comment utiliser cet outil
- Enter the first pair (A and B).
- Enter the third value C.
- Read X, the proportional answer.
- Adjust for variations and compare.
Cas d’usage typiques
- Scaling a recipe up or down.
- Finding paint or fertilizer coverage from a pilot patch.
Limites et mises en garde
- Assumes a linear (direct) proportional relationship.
- Does not handle compound rule of three with three or more pairs.
Confidentialité sur cette page
Les balises d’analyse produit (si vous les ajoutez plus tard) doivent se charger uniquement après consentement. Ce site n’impose pas de traceurs tiers.
The rule of three solves daily proportional questions like recipe scaling, paint coverage and unit pricing without a calculator app. Inputs stay in your browser.