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Finding the Fourth Proportional to 5,165.57, 7,748.28 and 1,269.94

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Solution

The fourth proportional to 5,165.57, 7,748.28 and 1,269.94 is: 1,904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.57 : 7,748.28 = 1,269.94 : x
  2. Step 2: Convert to fraction form
    5,165.57/7,748.28 = 1,269.94/x
  3. Step 3: Cross multiply
    5,165.57x = 7,748.28 × 1,269.94
  4. Step 4: Simplify right side
    5,165.57x = 9,839,850.70
  5. Step 5: Solve for x
    x = 9,839,850.70/5,165.57
  6. Step 6: Final answer
    x = 1,904.89

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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.