Finding the Third Proportional to 2,540 and 3,430
Calculator
Solution
The third proportional to 2,540 and 3,430 is: 4,631.85
Step by Step Solution
- Step 1: Write the proportion equation
2,540 : 3,430 = 3,430 : x - Step 2: Convert to fraction form
2,540/3,430 = 3,430/x - Step 3: Cross multiply
2,540x = 3,430 × 3,430 - Step 4: Simplify right side
2,540x = 11,764,900 - Step 5: Solve for x
x = 11,764,900/2,540 - Step 6: Final answer
x = 4,631.85
Related Problems
Find third proportional to 1,270 and 1,715
Half scale
Find third proportional to 5,080 and 6,860
Double scale
Find third proportional to 2,542 and 3,433
Similar ratio
Find third proportional to 3,810 and 5,145
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.