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Finding the Fourth Proportional to 7,399, 11,103.97 and 3,503.41

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Solution

The fourth proportional to 7,399, 11,103.97 and 3,503.41 is: 5,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,399 : 11,103.97 = 3,503.41 : x
  2. Step 2: Convert to fraction form
    7,399/11,103.97 = 3,503.41/x
  3. Step 3: Cross multiply
    7,399x = 11,103.97 × 3,503.41
  4. Step 4: Simplify right side
    7,399x = 38,901,759.54
  5. Step 5: Solve for x
    x = 38,901,759.54/7,399
  6. Step 6: Final answer
    x = 5,257.71

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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.