Home / 3,747.70-5,170.68-2,175.49

Finding the Fourth Proportional to 3,747.70, 5,170.68 and 2,175.49

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Solution

The fourth proportional to 3,747.70, 5,170.68 and 2,175.49 is: 3,001.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.70 : 5,170.68 = 2,175.49 : x
  2. Step 2: Convert to fraction form
    3,747.70/5,170.68 = 2,175.49/x
  3. Step 3: Cross multiply
    3,747.70x = 5,170.68 × 2,175.49
  4. Step 4: Simplify right side
    3,747.70x = 11,248,769.10
  5. Step 5: Solve for x
    x = 11,248,769.10/3,747.70
  6. Step 6: Final answer
    x = 3,001.51

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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.