Home / 3,789.81-5,229.98-2,217.94

Finding the Fourth Proportional to 3,789.81, 5,229.98 and 2,217.94

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Solution

The fourth proportional to 3,789.81, 5,229.98 and 2,217.94 is: 3,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.81 : 5,229.98 = 2,217.94 : x
  2. Step 2: Convert to fraction form
    3,789.81/5,229.98 = 2,217.94/x
  3. Step 3: Cross multiply
    3,789.81x = 5,229.98 × 2,217.94
  4. Step 4: Simplify right side
    3,789.81x = 11,599,781.84
  5. Step 5: Solve for x
    x = 11,599,781.84/3,789.81
  6. Step 6: Final answer
    x = 3,060.78

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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.