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Finding the Fourth Proportional to 5,171.84, 7,137.87 and 2,934.27

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Solution

The fourth proportional to 5,171.84, 7,137.87 and 2,934.27 is: 4,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.84 : 7,137.87 = 2,934.27 : x
  2. Step 2: Convert to fraction form
    5,171.84/7,137.87 = 2,934.27/x
  3. Step 3: Cross multiply
    5,171.84x = 7,137.87 × 2,934.27
  4. Step 4: Simplify right side
    5,171.84x = 20,944,387.44
  5. Step 5: Solve for x
    x = 20,944,387.44/5,171.84
  6. Step 6: Final answer
    x = 4,049.70

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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.