Home / 5,177.71-7,760.08-2,581.39

Finding the Fourth Proportional to 5,177.71, 7,760.08 and 2,581.39

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Solution

The fourth proportional to 5,177.71, 7,760.08 and 2,581.39 is: 3,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.71 : 7,760.08 = 2,581.39 : x
  2. Step 2: Convert to fraction form
    5,177.71/7,760.08 = 2,581.39/x
  3. Step 3: Cross multiply
    5,177.71x = 7,760.08 × 2,581.39
  4. Step 4: Simplify right side
    5,177.71x = 20,031,792.91
  5. Step 5: Solve for x
    x = 20,031,792.91/5,177.71
  6. Step 6: Final answer
    x = 3,868.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.