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Finding the Fourth Proportional to 3,768.62, 5,651.85 and 1,269.53

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Solution

The fourth proportional to 3,768.62, 5,651.85 and 1,269.53 is: 1,903.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.62 : 5,651.85 = 1,269.53 : x
  2. Step 2: Convert to fraction form
    3,768.62/5,651.85 = 1,269.53/x
  3. Step 3: Cross multiply
    3,768.62x = 5,651.85 × 1,269.53
  4. Step 4: Simplify right side
    3,768.62x = 7,175,200.91
  5. Step 5: Solve for x
    x = 7,175,200.91/3,768.62
  6. Step 6: Final answer
    x = 1,903.93

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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.