Home / 5,545.50-7,651.92-3,187.20

Finding the Fourth Proportional to 5,545.50, 7,651.92 and 3,187.20

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Solution

The fourth proportional to 5,545.50, 7,651.92 and 3,187.20 is: 4,397.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.50 : 7,651.92 = 3,187.20 : x
  2. Step 2: Convert to fraction form
    5,545.50/7,651.92 = 3,187.20/x
  3. Step 3: Cross multiply
    5,545.50x = 7,651.92 × 3,187.20
  4. Step 4: Simplify right side
    5,545.50x = 24,388,199.42
  5. Step 5: Solve for x
    x = 24,388,199.42/5,545.50
  6. Step 6: Final answer
    x = 4,397.84

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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.