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Finding the Fourth Proportional to 3,589.76, 5,379.70 and 2,711.52

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Solution

The fourth proportional to 3,589.76, 5,379.70 and 2,711.52 is: 4,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.76 : 5,379.70 = 2,711.52 : x
  2. Step 2: Convert to fraction form
    3,589.76/5,379.70 = 2,711.52/x
  3. Step 3: Cross multiply
    3,589.76x = 5,379.70 × 2,711.52
  4. Step 4: Simplify right side
    3,589.76x = 14,587,164.14
  5. Step 5: Solve for x
    x = 14,587,164.14/3,589.76
  6. Step 6: Final answer
    x = 4,063.55

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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.