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Finding the Fourth Proportional to 3,771.97, 5,207.49 and 3,279.89

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Solution

The fourth proportional to 3,771.97, 5,207.49 and 3,279.89 is: 4,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.97 : 5,207.49 = 3,279.89 : x
  2. Step 2: Convert to fraction form
    3,771.97/5,207.49 = 3,279.89/x
  3. Step 3: Cross multiply
    3,771.97x = 5,207.49 × 3,279.89
  4. Step 4: Simplify right side
    3,771.97x = 17,080,007.39
  5. Step 5: Solve for x
    x = 17,080,007.39/3,771.97
  6. Step 6: Final answer
    x = 4,528.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.