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Finding the Fourth Proportional to 2,754.72, 4,132.64 and 1,023.20

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Solution

The fourth proportional to 2,754.72, 4,132.64 and 1,023.20 is: 1,535.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,754.72 : 4,132.64 = 1,023.20 : x
  2. Step 2: Convert to fraction form
    2,754.72/4,132.64 = 1,023.20/x
  3. Step 3: Cross multiply
    2,754.72x = 4,132.64 × 1,023.20
  4. Step 4: Simplify right side
    2,754.72x = 4,228,517.25
  5. Step 5: Solve for x
    x = 4,228,517.25/2,754.72
  6. Step 6: Final answer
    x = 1,535.01

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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.