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Finding the Fourth Proportional to 3,867.54, 5,374.23 and 3,827.40

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Solution

The fourth proportional to 3,867.54, 5,374.23 and 3,827.40 is: 5,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.54 : 5,374.23 = 3,827.40 : x
  2. Step 2: Convert to fraction form
    3,867.54/5,374.23 = 3,827.40/x
  3. Step 3: Cross multiply
    3,867.54x = 5,374.23 × 3,827.40
  4. Step 4: Simplify right side
    3,867.54x = 20,569,327.90
  5. Step 5: Solve for x
    x = 20,569,327.90/3,867.54
  6. Step 6: Final answer
    x = 5,318.45

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These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.