Home / 5,174.17-7,761.20-1,885.87

Finding the Fourth Proportional to 5,174.17, 7,761.20 and 1,885.87

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Solution

The fourth proportional to 5,174.17, 7,761.20 and 1,885.87 is: 2,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.17 : 7,761.20 = 1,885.87 : x
  2. Step 2: Convert to fraction form
    5,174.17/7,761.20 = 1,885.87/x
  3. Step 3: Cross multiply
    5,174.17x = 7,761.20 × 1,885.87
  4. Step 4: Simplify right side
    5,174.17x = 14,636,614.24
  5. Step 5: Solve for x
    x = 14,636,614.24/5,174.17
  6. Step 6: Final answer
    x = 2,828.78

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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.