Home / 3,387.20-5,077.19-1,631.10

Finding the Fourth Proportional to 3,387.20, 5,077.19 and 1,631.10

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Solution

The fourth proportional to 3,387.20, 5,077.19 and 1,631.10 is: 2,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.20 : 5,077.19 = 1,631.10 : x
  2. Step 2: Convert to fraction form
    3,387.20/5,077.19 = 1,631.10/x
  3. Step 3: Cross multiply
    3,387.20x = 5,077.19 × 1,631.10
  4. Step 4: Simplify right side
    3,387.20x = 8,281,427.73
  5. Step 5: Solve for x
    x = 8,281,427.73/3,387.20
  6. Step 6: Final answer
    x = 2,444.92

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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.