Home / 3,908.45-5,394.18-2,229.48

Finding the Fourth Proportional to 3,908.45, 5,394.18 and 2,229.48

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Solution

The fourth proportional to 3,908.45, 5,394.18 and 2,229.48 is: 3,076.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.45 : 5,394.18 = 2,229.48 : x
  2. Step 2: Convert to fraction form
    3,908.45/5,394.18 = 2,229.48/x
  3. Step 3: Cross multiply
    3,908.45x = 5,394.18 × 2,229.48
  4. Step 4: Simplify right side
    3,908.45x = 12,026,189.46
  5. Step 5: Solve for x
    x = 12,026,189.46/3,908.45
  6. Step 6: Final answer
    x = 3,076.97

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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.