Home / 3,906.96-5,391.78-2,206.04

Finding the Fourth Proportional to 3,906.96, 5,391.78 and 2,206.04

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Solution

The fourth proportional to 3,906.96, 5,391.78 and 2,206.04 is: 3,044.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.96 : 5,391.78 = 2,206.04 : x
  2. Step 2: Convert to fraction form
    3,906.96/5,391.78 = 2,206.04/x
  3. Step 3: Cross multiply
    3,906.96x = 5,391.78 × 2,206.04
  4. Step 4: Simplify right side
    3,906.96x = 11,894,482.35
  5. Step 5: Solve for x
    x = 11,894,482.35/3,906.96
  6. Step 6: Final answer
    x = 3,044.43

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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.