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Finding the Fourth Proportional to 4,175.97, 6,255.45 and 1,978.04

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Solution

The fourth proportional to 4,175.97, 6,255.45 and 1,978.04 is: 2,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,175.97 : 6,255.45 = 1,978.04 : x
  2. Step 2: Convert to fraction form
    4,175.97/6,255.45 = 1,978.04/x
  3. Step 3: Cross multiply
    4,175.97x = 6,255.45 × 1,978.04
  4. Step 4: Simplify right side
    4,175.97x = 12,373,530.32
  5. Step 5: Solve for x
    x = 12,373,530.32/4,175.97
  6. Step 6: Final answer
    x = 2,963.03

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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.