Home / 3,908.20-5,392.82-2,229.51

Finding the Fourth Proportional to 3,908.20, 5,392.82 and 2,229.51

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Solution

The fourth proportional to 3,908.20, 5,392.82 and 2,229.51 is: 3,076.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.20 : 5,392.82 = 2,229.51 : x
  2. Step 2: Convert to fraction form
    3,908.20/5,392.82 = 2,229.51/x
  3. Step 3: Cross multiply
    3,908.20x = 5,392.82 × 2,229.51
  4. Step 4: Simplify right side
    3,908.20x = 12,023,358.06
  5. Step 5: Solve for x
    x = 12,023,358.06/3,908.20
  6. Step 6: Final answer
    x = 3,076.44

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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.