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Finding the Fourth Proportional to 7,171.62, 9,897.03 and 4,027.74

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Solution

The fourth proportional to 7,171.62, 9,897.03 and 4,027.74 is: 5,558.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171.62 : 9,897.03 = 4,027.74 : x
  2. Step 2: Convert to fraction form
    7,171.62/9,897.03 = 4,027.74/x
  3. Step 3: Cross multiply
    7,171.62x = 9,897.03 × 4,027.74
  4. Step 4: Simplify right side
    7,171.62x = 39,862,663.61
  5. Step 5: Solve for x
    x = 39,862,663.61/7,171.62
  6. Step 6: Final answer
    x = 5,558.39

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1.5x scale

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.