Home / 3,879.16-5,353.46-2,200.65

Finding the Fourth Proportional to 3,879.16, 5,353.46 and 2,200.65

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Solution

The fourth proportional to 3,879.16, 5,353.46 and 2,200.65 is: 3,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.16 : 5,353.46 = 2,200.65 : x
  2. Step 2: Convert to fraction form
    3,879.16/5,353.46 = 2,200.65/x
  3. Step 3: Cross multiply
    3,879.16x = 5,353.46 × 2,200.65
  4. Step 4: Simplify right side
    3,879.16x = 11,781,091.75
  5. Step 5: Solve for x
    x = 11,781,091.75/3,879.16
  6. Step 6: Final answer
    x = 3,037.02

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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.