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Finding the Fourth Proportional to 3,321.62, 4,982.43 and 2,893.94

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Solution

The fourth proportional to 3,321.62, 4,982.43 and 2,893.94 is: 4,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.62 : 4,982.43 = 2,893.94 : x
  2. Step 2: Convert to fraction form
    3,321.62/4,982.43 = 2,893.94/x
  3. Step 3: Cross multiply
    3,321.62x = 4,982.43 × 2,893.94
  4. Step 4: Simplify right side
    3,321.62x = 14,418,853.47
  5. Step 5: Solve for x
    x = 14,418,853.47/3,321.62
  6. Step 6: Final answer
    x = 4,340.91

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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.