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Finding the Fourth Proportional to 7,758.80, 11,636.14 and 3,375.24

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Solution

The fourth proportional to 7,758.80, 11,636.14 and 3,375.24 is: 5,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.80 : 11,636.14 = 3,375.24 : x
  2. Step 2: Convert to fraction form
    7,758.80/11,636.14 = 3,375.24/x
  3. Step 3: Cross multiply
    7,758.80x = 11,636.14 × 3,375.24
  4. Step 4: Simplify right side
    7,758.80x = 39,274,765.17
  5. Step 5: Solve for x
    x = 39,274,765.17/7,758.80
  6. Step 6: Final answer
    x = 5,061.96

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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.