Home / 3,394.36-5,091.61-2,231.78

Finding the Fourth Proportional to 3,394.36, 5,091.61 and 2,231.78

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Solution

The fourth proportional to 3,394.36, 5,091.61 and 2,231.78 is: 3,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.36 : 5,091.61 = 2,231.78 : x
  2. Step 2: Convert to fraction form
    3,394.36/5,091.61 = 2,231.78/x
  3. Step 3: Cross multiply
    3,394.36x = 5,091.61 × 2,231.78
  4. Step 4: Simplify right side
    3,394.36x = 11,363,353.37
  5. Step 5: Solve for x
    x = 11,363,353.37/3,394.36
  6. Step 6: Final answer
    x = 3,347.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.