Home / 5,500.11-8,251.04-1,989.76

Finding the Fourth Proportional to 5,500.11, 8,251.04 and 1,989.76

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Solution

The fourth proportional to 5,500.11, 8,251.04 and 1,989.76 is: 2,984.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.11 : 8,251.04 = 1,989.76 : x
  2. Step 2: Convert to fraction form
    5,500.11/8,251.04 = 1,989.76/x
  3. Step 3: Cross multiply
    5,500.11x = 8,251.04 × 1,989.76
  4. Step 4: Simplify right side
    5,500.11x = 16,417,589.35
  5. Step 5: Solve for x
    x = 16,417,589.35/5,500.11
  6. Step 6: Final answer
    x = 2,984.96

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1.5x scale

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.