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Finding the Fourth Proportional to 1,374.82, 2,062.58 and 400.92

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Solution

The fourth proportional to 1,374.82, 2,062.58 and 400.92 is: 601.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.82 : 2,062.58 = 400.92 : x
  2. Step 2: Convert to fraction form
    1,374.82/2,062.58 = 400.92/x
  3. Step 3: Cross multiply
    1,374.82x = 2,062.58 × 400.92
  4. Step 4: Simplify right side
    1,374.82x = 826,929.57
  5. Step 5: Solve for x
    x = 826,929.57/1,374.82
  6. Step 6: Final answer
    x = 601.48

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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.