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Finding the Fourth Proportional to 3,369.75, 5,054.62 and 1,520.52

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Solution

The fourth proportional to 3,369.75, 5,054.62 and 1,520.52 is: 2,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.75 : 5,054.62 = 1,520.52 : x
  2. Step 2: Convert to fraction form
    3,369.75/5,054.62 = 1,520.52/x
  3. Step 3: Cross multiply
    3,369.75x = 5,054.62 × 1,520.52
  4. Step 4: Simplify right side
    3,369.75x = 7,685,650.80
  5. Step 5: Solve for x
    x = 7,685,650.80/3,369.75
  6. Step 6: Final answer
    x = 2,280.78

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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.