Home / 3,879.41-5,353.71-2,200.89

Finding the Fourth Proportional to 3,879.41, 5,353.71 and 2,200.89

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Solution

The fourth proportional to 3,879.41, 5,353.71 and 2,200.89 is: 3,037.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.41 : 5,353.71 = 2,200.89 : x
  2. Step 2: Convert to fraction form
    3,879.41/5,353.71 = 2,200.89/x
  3. Step 3: Cross multiply
    3,879.41x = 5,353.71 × 2,200.89
  4. Step 4: Simplify right side
    3,879.41x = 11,782,911.61
  5. Step 5: Solve for x
    x = 11,782,911.61/3,879.41
  6. Step 6: Final answer
    x = 3,037.29

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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.