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Finding the Fourth Proportional to 7,171.08, 10,757.88 and 2,553

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Solution

The fourth proportional to 7,171.08, 10,757.88 and 2,553 is: 3,829.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.08 : 10,757.88 = 2,553 : x
  2. Step 2: Convert to fraction form
    7,171.08/10,757.88 = 2,553/x
  3. Step 3: Cross multiply
    7,171.08x = 10,757.88 × 2,553
  4. Step 4: Simplify right side
    7,171.08x = 27,464,867.64
  5. Step 5: Solve for x
    x = 27,464,867.64/7,171.08
  6. Step 6: Final answer
    x = 3,829.95

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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.