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Finding the Fourth Proportional to 1,052.96, 1,579.52 and 932.32

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Solution

The fourth proportional to 1,052.96, 1,579.52 and 932.32 is: 1,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.96 : 1,579.52 = 932.32 : x
  2. Step 2: Convert to fraction form
    1,052.96/1,579.52 = 932.32/x
  3. Step 3: Cross multiply
    1,052.96x = 1,579.52 × 932.32
  4. Step 4: Simplify right side
    1,052.96x = 1,472,618.09
  5. Step 5: Solve for x
    x = 1,472,618.09/1,052.96
  6. Step 6: Final answer
    x = 1,398.55

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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.