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Finding the Fourth Proportional to 3,871.27, 5,340.58 and 2,277.42

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Solution

The fourth proportional to 3,871.27, 5,340.58 and 2,277.42 is: 3,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.27 : 5,340.58 = 2,277.42 : x
  2. Step 2: Convert to fraction form
    3,871.27/5,340.58 = 2,277.42/x
  3. Step 3: Cross multiply
    3,871.27x = 5,340.58 × 2,277.42
  4. Step 4: Simplify right side
    3,871.27x = 12,162,743.70
  5. Step 5: Solve for x
    x = 12,162,743.70/3,871.27
  6. Step 6: Final answer
    x = 3,141.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.