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Finding the Fourth Proportional to 2,995.38, 4,487.88 and 2,691

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Solution

The fourth proportional to 2,995.38, 4,487.88 and 2,691 is: 4,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.38 : 4,487.88 = 2,691 : x
  2. Step 2: Convert to fraction form
    2,995.38/4,487.88 = 2,691/x
  3. Step 3: Cross multiply
    2,995.38x = 4,487.88 × 2,691
  4. Step 4: Simplify right side
    2,995.38x = 12,076,885.08
  5. Step 5: Solve for x
    x = 12,076,885.08/2,995.38
  6. Step 6: Final answer
    x = 4,031.84

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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.