Home / 2,487.20-3,732.90-1,027.40

Finding the Fourth Proportional to 2,487.20, 3,732.90 and 1,027.40

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Solution

The fourth proportional to 2,487.20, 3,732.90 and 1,027.40 is: 1,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.20 : 3,732.90 = 1,027.40 : x
  2. Step 2: Convert to fraction form
    2,487.20/3,732.90 = 1,027.40/x
  3. Step 3: Cross multiply
    2,487.20x = 3,732.90 × 1,027.40
  4. Step 4: Simplify right side
    2,487.20x = 3,835,181.46
  5. Step 5: Solve for x
    x = 3,835,181.46/2,487.20
  6. Step 6: Final answer
    x = 1,541.97

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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.