Home / 3,997.76-5,516.79-2,229.33

Finding the Fourth Proportional to 3,997.76, 5,516.79 and 2,229.33

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Solution

The fourth proportional to 3,997.76, 5,516.79 and 2,229.33 is: 3,076.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,997.76 : 5,516.79 = 2,229.33 : x
  2. Step 2: Convert to fraction form
    3,997.76/5,516.79 = 2,229.33/x
  3. Step 3: Cross multiply
    3,997.76x = 5,516.79 × 2,229.33
  4. Step 4: Simplify right side
    3,997.76x = 12,298,745.45
  5. Step 5: Solve for x
    x = 12,298,745.45/3,997.76
  6. Step 6: Final answer
    x = 3,076.41

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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.