Proportion Scale Equation
2 : 3 = 4 : 6.0000
Solved Value (X)
0.0000
How Ratio & Proportion Scaling Works
Proportions establish equality between two ratios ($A:B = C:X$). Missing values are solved via cross-multiplication:
1
Cross-Multiplication
Multiply the outer extremes ($A \times X$) and inner means ($B \times C$) to set up the equation.
2
Isolating Variable X
Divide the product of means ($B \times C$) by the known part $A$ to isolate $X$ ($X = \frac{B \times C}{A}$).
3
Scale Verification
Confirm that both ratios yield identical decimal proportions or simplified fraction equivalents.
📊 Benchmark Simulation (2:3 = 4:X)
Part A2
Part B3
Value C4
Solved X6.0000
Frequently Asked Questions
What is the difference between a ratio and a proportion?
A ratio compares two quantities ($A:B$), while a proportion states that two ratios are equal ($A:B = C:X$).
How do you scale recipes using a ratio calculator?
Input your original ingredient ratio ($A:B$) and your new available amount of one ingredient ($C$) to find the required amount of the other ($X$).