Finding the Third Proportional to 681 and 1,608
Calculator
Solution
The third proportional to 681 and 1,608 is: 3,796.86
Step by Step Solution
- Step 1: Write the proportion equation
681 : 1,608 = 1,608 : x - Step 2: Convert to fraction form
681/1,608 = 1,608/x - Step 3: Cross multiply
681x = 1,608 × 1,608 - Step 4: Simplify right side
681x = 2,585,664 - Step 5: Solve for x
x = 2,585,664/681 - Step 6: Final answer
x = 3,796.86
Related Problems
Find third proportional to 340.50 and 804
Half scale
Find third proportional to 1,362 and 3,216
Double scale
Find third proportional to 683 and 1,613
Similar ratio
Find third proportional to 1,021.50 and 2,412
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.