Home / 3,951.20-5,452.71-2,182.80

Finding the Fourth Proportional to 3,951.20, 5,452.71 and 2,182.80

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Solution

The fourth proportional to 3,951.20, 5,452.71 and 2,182.80 is: 3,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.20 : 5,452.71 = 2,182.80 : x
  2. Step 2: Convert to fraction form
    3,951.20/5,452.71 = 2,182.80/x
  3. Step 3: Cross multiply
    3,951.20x = 5,452.71 × 2,182.80
  4. Step 4: Simplify right side
    3,951.20x = 11,902,175.39
  5. Step 5: Solve for x
    x = 11,902,175.39/3,951.20
  6. Step 6: Final answer
    x = 3,012.30

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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.