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Finding the Fourth Proportional to 3,858.76, 5,791.14 and 2,764.12

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Solution

The fourth proportional to 3,858.76, 5,791.14 and 2,764.12 is: 4,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,858.76 : 5,791.14 = 2,764.12 : x
  2. Step 2: Convert to fraction form
    3,858.76/5,791.14 = 2,764.12/x
  3. Step 3: Cross multiply
    3,858.76x = 5,791.14 × 2,764.12
  4. Step 4: Simplify right side
    3,858.76x = 16,007,405.90
  5. Step 5: Solve for x
    x = 16,007,405.90/3,858.76
  6. Step 6: Final answer
    x = 4,148.33

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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.