Finding the Third Proportional to 726 and 1,317
Calculator
Solution
The third proportional to 726 and 1,317 is: 2,389.10
Step by Step Solution
- Step 1: Write the proportion equation
726 : 1,317 = 1,317 : x - Step 2: Convert to fraction form
726/1,317 = 1,317/x - Step 3: Cross multiply
726x = 1,317 × 1,317 - Step 4: Simplify right side
726x = 1,734,489 - Step 5: Solve for x
x = 1,734,489/726 - Step 6: Final answer
x = 2,389.10
Related Problems
Find third proportional to 363 and 658.50
Half scale
Find third proportional to 1,452 and 2,634
Double scale
Find third proportional to 728 and 1,321
Similar ratio
Find third proportional to 1,089 and 1,975.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.