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Finding the Fourth Proportional to 2,490.08, 3,732.08 and 1,027.60

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Solution

The fourth proportional to 2,490.08, 3,732.08 and 1,027.60 is: 1,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.08 : 3,732.08 = 1,027.60 : x
  2. Step 2: Convert to fraction form
    2,490.08/3,732.08 = 1,027.60/x
  3. Step 3: Cross multiply
    2,490.08x = 3,732.08 × 1,027.60
  4. Step 4: Simplify right side
    2,490.08x = 3,835,085.41
  5. Step 5: Solve for x
    x = 3,835,085.41/2,490.08
  6. Step 6: Final answer
    x = 1,540.15

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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.