Finding the Third Proportional to 861.50 and 956
Calculator
Solution
The third proportional to 861.50 and 956 is: 1,060.87
Step by Step Solution
- Step 1: Write the proportion equation
861.50 : 956 = 956 : x - Step 2: Convert to fraction form
861.50/956 = 956/x - Step 3: Cross multiply
861.50x = 956 × 956 - Step 4: Simplify right side
861.50x = 913,936 - Step 5: Solve for x
x = 913,936/861.50 - Step 6: Final answer
x = 1,060.87
Related Problems
Find third proportional to 430.75 and 478
Half scale
Find third proportional to 1,723 and 1,912
Double scale
Find third proportional to 864 and 958
Similar ratio
Find third proportional to 1,292.25 and 1,434
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.