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Finding the Fourth Proportional to 1,402.66, 2,103.27 and 754.18

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Solution

The fourth proportional to 1,402.66, 2,103.27 and 754.18 is: 1,130.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.66 : 2,103.27 = 754.18 : x
  2. Step 2: Convert to fraction form
    1,402.66/2,103.27 = 754.18/x
  3. Step 3: Cross multiply
    1,402.66x = 2,103.27 × 754.18
  4. Step 4: Simplify right side
    1,402.66x = 1,586,244.17
  5. Step 5: Solve for x
    x = 1,586,244.17/1,402.66
  6. Step 6: Final answer
    x = 1,130.88

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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.