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Finding the Fourth Proportional to 2,375.57, 3,279.11 and 1,631.99

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Solution

The fourth proportional to 2,375.57, 3,279.11 and 1,631.99 is: 2,252.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.57 : 3,279.11 = 1,631.99 : x
  2. Step 2: Convert to fraction form
    2,375.57/3,279.11 = 1,631.99/x
  3. Step 3: Cross multiply
    2,375.57x = 3,279.11 × 1,631.99
  4. Step 4: Simplify right side
    2,375.57x = 5,351,474.77
  5. Step 5: Solve for x
    x = 5,351,474.77/2,375.57
  6. Step 6: Final answer
    x = 2,252.71

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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.