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Finding the Fourth Proportional to 5,500.80, 8,251.20 and 1,604.70

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Solution

The fourth proportional to 5,500.80, 8,251.20 and 1,604.70 is: 2,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,500.80 : 8,251.20 = 1,604.70 : x
  2. Step 2: Convert to fraction form
    5,500.80/8,251.20 = 1,604.70/x
  3. Step 3: Cross multiply
    5,500.80x = 8,251.20 × 1,604.70
  4. Step 4: Simplify right side
    5,500.80x = 13,240,700.64
  5. Step 5: Solve for x
    x = 13,240,700.64/5,500.80
  6. Step 6: Final answer
    x = 2,407.05

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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.