Home / 3,680.60-5,520.90-1,489.35

Finding the Fourth Proportional to 3,680.60, 5,520.90 and 1,489.35

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Solution

The fourth proportional to 3,680.60, 5,520.90 and 1,489.35 is: 2,234.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.60 : 5,520.90 = 1,489.35 : x
  2. Step 2: Convert to fraction form
    3,680.60/5,520.90 = 1,489.35/x
  3. Step 3: Cross multiply
    3,680.60x = 5,520.90 × 1,489.35
  4. Step 4: Simplify right side
    3,680.60x = 8,222,517.36
  5. Step 5: Solve for x
    x = 8,222,517.36/3,680.60
  6. Step 6: Final answer
    x = 2,234.02

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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.