Finding the Third Proportional to 2,815 and 4,481
Calculator
Solution
The third proportional to 2,815 and 4,481 is: 7,132.99
Step by Step Solution
- Step 1: Write the proportion equation
2,815 : 4,481 = 4,481 : x - Step 2: Convert to fraction form
2,815/4,481 = 4,481/x - Step 3: Cross multiply
2,815x = 4,481 × 4,481 - Step 4: Simplify right side
2,815x = 20,079,361 - Step 5: Solve for x
x = 20,079,361/2,815 - Step 6: Final answer
x = 7,132.99
Related Problems
Find third proportional to 1,407.50 and 2,240.50
Half scale
Find third proportional to 5,630 and 8,962
Double scale
Find third proportional to 2,817 and 4,484
Similar ratio
Find third proportional to 4,222.50 and 6,721.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.