Finding the Third Proportional to 867 and 1,317
Calculator
Solution
The third proportional to 867 and 1,317 is: 2,000.56
Step by Step Solution
- Step 1: Write the proportion equation
867 : 1,317 = 1,317 : x - Step 2: Convert to fraction form
867/1,317 = 1,317/x - Step 3: Cross multiply
867x = 1,317 × 1,317 - Step 4: Simplify right side
867x = 1,734,489 - Step 5: Solve for x
x = 1,734,489/867 - Step 6: Final answer
x = 2,000.56
Related Problems
Find third proportional to 433.50 and 658.50
Half scale
Find third proportional to 1,734 and 2,634
Double scale
Find third proportional to 869 and 1,320
Similar ratio
Find third proportional to 1,300.50 and 1,975.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.