Home / 3,747.62-5,172-2,757.44

Finding the Fourth Proportional to 3,747.62, 5,172 and 2,757.44

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Solution

The fourth proportional to 3,747.62, 5,172 and 2,757.44 is: 3,805.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.62 : 5,172 = 2,757.44 : x
  2. Step 2: Convert to fraction form
    3,747.62/5,172 = 2,757.44/x
  3. Step 3: Cross multiply
    3,747.62x = 5,172 × 2,757.44
  4. Step 4: Simplify right side
    3,747.62x = 14,261,479.68
  5. Step 5: Solve for x
    x = 14,261,479.68/3,747.62
  6. Step 6: Final answer
    x = 3,805.48

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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.