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Finding the Fourth Proportional to 3,321.54, 4,976.82 and 1,469.88

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Solution

The fourth proportional to 3,321.54, 4,976.82 and 1,469.88 is: 2,202.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.54 : 4,976.82 = 1,469.88 : x
  2. Step 2: Convert to fraction form
    3,321.54/4,976.82 = 1,469.88/x
  3. Step 3: Cross multiply
    3,321.54x = 4,976.82 × 1,469.88
  4. Step 4: Simplify right side
    3,321.54x = 7,315,328.18
  5. Step 5: Solve for x
    x = 7,315,328.18/3,321.54
  6. Step 6: Final answer
    x = 2,202.39

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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.