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Finding the Fourth Proportional to 3,195.72, 4,791.18 and 2,152.78

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Solution

The fourth proportional to 3,195.72, 4,791.18 and 2,152.78 is: 3,227.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.72 : 4,791.18 = 2,152.78 : x
  2. Step 2: Convert to fraction form
    3,195.72/4,791.18 = 2,152.78/x
  3. Step 3: Cross multiply
    3,195.72x = 4,791.18 × 2,152.78
  4. Step 4: Simplify right side
    3,195.72x = 10,314,352.58
  5. Step 5: Solve for x
    x = 10,314,352.58/3,195.72
  6. Step 6: Final answer
    x = 3,227.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.