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Finding the Fourth Proportional to 7,375.60, 11,063.12 and 2,991.88

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Solution

The fourth proportional to 7,375.60, 11,063.12 and 2,991.88 is: 4,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,375.60 : 11,063.12 = 2,991.88 : x
  2. Step 2: Convert to fraction form
    7,375.60/11,063.12 = 2,991.88/x
  3. Step 3: Cross multiply
    7,375.60x = 11,063.12 × 2,991.88
  4. Step 4: Simplify right side
    7,375.60x = 33,099,527.47
  5. Step 5: Solve for x
    x = 33,099,527.47/7,375.60
  6. Step 6: Final answer
    x = 4,487.71

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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.