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Finding the Fourth Proportional to 6,704, 9,251.52 and 3,720.28

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Solution

The fourth proportional to 6,704, 9,251.52 and 3,720.28 is: 5,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,704 : 9,251.52 = 3,720.28 : x
  2. Step 2: Convert to fraction form
    6,704/9,251.52 = 3,720.28/x
  3. Step 3: Cross multiply
    6,704x = 9,251.52 × 3,720.28
  4. Step 4: Simplify right side
    6,704x = 34,418,198.57
  5. Step 5: Solve for x
    x = 34,418,198.57/6,704
  6. Step 6: Final answer
    x = 5,133.98

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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.