Home / 5,516.28-7,610.77-3,125.87

Finding the Fourth Proportional to 5,516.28, 7,610.77 and 3,125.87

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Solution

The fourth proportional to 5,516.28, 7,610.77 and 3,125.87 is: 4,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.28 : 7,610.77 = 3,125.87 : x
  2. Step 2: Convert to fraction form
    5,516.28/7,610.77 = 3,125.87/x
  3. Step 3: Cross multiply
    5,516.28x = 7,610.77 × 3,125.87
  4. Step 4: Simplify right side
    5,516.28x = 23,790,231.75
  5. Step 5: Solve for x
    x = 23,790,231.75/5,516.28
  6. Step 6: Final answer
    x = 4,312.73

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.