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Finding the Fourth Proportional to 2,668.62, 4,008.11 and 2,175.39

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Solution

The fourth proportional to 2,668.62, 4,008.11 and 2,175.39 is: 3,267.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.62 : 4,008.11 = 2,175.39 : x
  2. Step 2: Convert to fraction form
    2,668.62/4,008.11 = 2,175.39/x
  3. Step 3: Cross multiply
    2,668.62x = 4,008.11 × 2,175.39
  4. Step 4: Simplify right side
    2,668.62x = 8,719,202.41
  5. Step 5: Solve for x
    x = 8,719,202.41/2,668.62
  6. Step 6: Final answer
    x = 3,267.31

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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.