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Finding the Fourth Proportional to 5,352.40, 8,034.04 and 3,894.40

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Solution

The fourth proportional to 5,352.40, 8,034.04 and 3,894.40 is: 5,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,352.40 : 8,034.04 = 3,894.40 : x
  2. Step 2: Convert to fraction form
    5,352.40/8,034.04 = 3,894.40/x
  3. Step 3: Cross multiply
    5,352.40x = 8,034.04 × 3,894.40
  4. Step 4: Simplify right side
    5,352.40x = 31,287,765.38
  5. Step 5: Solve for x
    x = 31,287,765.38/5,352.40
  6. Step 6: Final answer
    x = 5,845.56

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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.