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Finding the Fourth Proportional to 6,648.78, 9,175.28 and 3,623.90

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Solution

The fourth proportional to 6,648.78, 9,175.28 and 3,623.90 is: 5,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.78 : 9,175.28 = 3,623.90 : x
  2. Step 2: Convert to fraction form
    6,648.78/9,175.28 = 3,623.90/x
  3. Step 3: Cross multiply
    6,648.78x = 9,175.28 × 3,623.90
  4. Step 4: Simplify right side
    6,648.78x = 33,250,297.19
  5. Step 5: Solve for x
    x = 33,250,297.19/6,648.78
  6. Step 6: Final answer
    x = 5,000.96

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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.