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Finding the Fourth Proportional to 3,388.85, 5,078.23 and 2,002.49

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Solution

The fourth proportional to 3,388.85, 5,078.23 and 2,002.49 is: 3,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.85 : 5,078.23 = 2,002.49 : x
  2. Step 2: Convert to fraction form
    3,388.85/5,078.23 = 2,002.49/x
  3. Step 3: Cross multiply
    3,388.85x = 5,078.23 × 2,002.49
  4. Step 4: Simplify right side
    3,388.85x = 10,169,104.79
  5. Step 5: Solve for x
    x = 10,169,104.79/3,388.85
  6. Step 6: Final answer
    x = 3,000.75

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1.5x scale

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.