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Finding the Fourth Proportional to 7,388.10, 11,072.91 and 3,691.37

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Solution

The fourth proportional to 7,388.10, 11,072.91 and 3,691.37 is: 5,532.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.10 : 11,072.91 = 3,691.37 : x
  2. Step 2: Convert to fraction form
    7,388.10/11,072.91 = 3,691.37/x
  3. Step 3: Cross multiply
    7,388.10x = 11,072.91 × 3,691.37
  4. Step 4: Simplify right side
    7,388.10x = 40,874,207.79
  5. Step 5: Solve for x
    x = 40,874,207.79/7,388.10
  6. Step 6: Final answer
    x = 5,532.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.