Finding the Third Proportional to 726 and 1,805
Calculator
Solution
The third proportional to 726 and 1,805 is: 4,487.64
Step by Step Solution
- Step 1: Write the proportion equation
726 : 1,805 = 1,805 : x - Step 2: Convert to fraction form
726/1,805 = 1,805/x - Step 3: Cross multiply
726x = 1,805 × 1,805 - Step 4: Simplify right side
726x = 3,258,025 - Step 5: Solve for x
x = 3,258,025/726 - Step 6: Final answer
x = 4,487.64
Related Problems
Find third proportional to 363 and 902.50
Half scale
Find third proportional to 1,452 and 3,610
Double scale
Find third proportional to 728 and 1,810
Similar ratio
Find third proportional to 1,089 and 2,707.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.