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Finding the Fourth Proportional to 3,248.41, 4,873.43 and 939.91

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Solution

The fourth proportional to 3,248.41, 4,873.43 and 939.91 is: 1,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.41 : 4,873.43 = 939.91 : x
  2. Step 2: Convert to fraction form
    3,248.41/4,873.43 = 939.91/x
  3. Step 3: Cross multiply
    3,248.41x = 4,873.43 × 939.91
  4. Step 4: Simplify right side
    3,248.41x = 4,580,585.59
  5. Step 5: Solve for x
    x = 4,580,585.59/3,248.41
  6. Step 6: Final answer
    x = 1,410.10

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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.