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Finding the Fourth Proportional to 1,902.40, 2,854.14 and 732.76

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Solution

The fourth proportional to 1,902.40, 2,854.14 and 732.76 is: 1,099.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902.40 : 2,854.14 = 732.76 : x
  2. Step 2: Convert to fraction form
    1,902.40/2,854.14 = 732.76/x
  3. Step 3: Cross multiply
    1,902.40x = 2,854.14 × 732.76
  4. Step 4: Simplify right side
    1,902.40x = 2,091,399.63
  5. Step 5: Solve for x
    x = 2,091,399.63/1,902.40
  6. Step 6: Final answer
    x = 1,099.35

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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.