Home / 5,545.60-7,651.20-3,186.88

Finding the Fourth Proportional to 5,545.60, 7,651.20 and 3,186.88

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Solution

The fourth proportional to 5,545.60, 7,651.20 and 3,186.88 is: 4,396.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.60 : 7,651.20 = 3,186.88 : x
  2. Step 2: Convert to fraction form
    5,545.60/7,651.20 = 3,186.88/x
  3. Step 3: Cross multiply
    5,545.60x = 7,651.20 × 3,186.88
  4. Step 4: Simplify right side
    5,545.60x = 24,383,456.26
  5. Step 5: Solve for x
    x = 24,383,456.26/5,545.60
  6. Step 6: Final answer
    x = 4,396.90

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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.