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Finding the Fourth Proportional to 3,754.83, 5,635.89 and 2,721.47

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Solution

The fourth proportional to 3,754.83, 5,635.89 and 2,721.47 is: 4,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.83 : 5,635.89 = 2,721.47 : x
  2. Step 2: Convert to fraction form
    3,754.83/5,635.89 = 2,721.47/x
  3. Step 3: Cross multiply
    3,754.83x = 5,635.89 × 2,721.47
  4. Step 4: Simplify right side
    3,754.83x = 15,337,919.65
  5. Step 5: Solve for x
    x = 15,337,919.65/3,754.83
  6. Step 6: Final answer
    x = 4,084.85

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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.