Home / 3,879.59-5,353.98-2,223.91

Finding the Fourth Proportional to 3,879.59, 5,353.98 and 2,223.91

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Solution

The fourth proportional to 3,879.59, 5,353.98 and 2,223.91 is: 3,069.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.59 : 5,353.98 = 2,223.91 : x
  2. Step 2: Convert to fraction form
    3,879.59/5,353.98 = 2,223.91/x
  3. Step 3: Cross multiply
    3,879.59x = 5,353.98 × 2,223.91
  4. Step 4: Simplify right side
    3,879.59x = 11,906,769.66
  5. Step 5: Solve for x
    x = 11,906,769.66/3,879.59
  6. Step 6: Final answer
    x = 3,069.08

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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.