Home / 758.25-1,639.69

Finding the Third Proportional to 758.25 and 1,639.69

Calculator

Solution

The third proportional to 758.25 and 1,639.69 is: 3,545.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.25 : 1,639.69 = 1,639.69 : x
  2. Step 2: Convert to fraction form
    758.25/1,639.69 = 1,639.69/x
  3. Step 3: Cross multiply
    758.25x = 1,639.69 × 1,639.69
  4. Step 4: Simplify right side
    758.25x = 2,688,575.10
  5. Step 5: Solve for x
    x = 2,688,575.10/758.25
  6. Step 6: Final answer
    x = 3,545.76

Related Problems

Find third proportional to 379.13 and 819.84
Half scale
Find third proportional to 1,516.50 and 3,279.38
Double scale
Find third proportional to 760 and 1,644
Similar ratio
Find third proportional to 1,137.38 and 2,459.53
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.