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Finding the Fourth Proportional to 3,172.38, 4,755.69 and 1,801.50

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Solution

The fourth proportional to 3,172.38, 4,755.69 and 1,801.50 is: 2,700.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.38 : 4,755.69 = 1,801.50 : x
  2. Step 2: Convert to fraction form
    3,172.38/4,755.69 = 1,801.50/x
  3. Step 3: Cross multiply
    3,172.38x = 4,755.69 × 1,801.50
  4. Step 4: Simplify right side
    3,172.38x = 8,567,375.54
  5. Step 5: Solve for x
    x = 8,567,375.54/3,172.38
  6. Step 6: Final answer
    x = 2,700.61

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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.