Home / 5,117.60-7,676.40-3,149.30

Finding the Fourth Proportional to 5,117.60, 7,676.40 and 3,149.30

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Solution

The fourth proportional to 5,117.60, 7,676.40 and 3,149.30 is: 4,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.60 : 7,676.40 = 3,149.30 : x
  2. Step 2: Convert to fraction form
    5,117.60/7,676.40 = 3,149.30/x
  3. Step 3: Cross multiply
    5,117.60x = 7,676.40 × 3,149.30
  4. Step 4: Simplify right side
    5,117.60x = 24,175,286.52
  5. Step 5: Solve for x
    x = 24,175,286.52/5,117.60
  6. Step 6: Final answer
    x = 4,723.95

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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.