Home / 3,966.21-5,469.26-2,772.27

Finding the Fourth Proportional to 3,966.21, 5,469.26 and 2,772.27

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Solution

The fourth proportional to 3,966.21, 5,469.26 and 2,772.27 is: 3,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.21 : 5,469.26 = 2,772.27 : x
  2. Step 2: Convert to fraction form
    3,966.21/5,469.26 = 2,772.27/x
  3. Step 3: Cross multiply
    3,966.21x = 5,469.26 × 2,772.27
  4. Step 4: Simplify right side
    3,966.21x = 15,162,251.56
  5. Step 5: Solve for x
    x = 15,162,251.56/3,966.21
  6. Step 6: Final answer
    x = 3,822.86

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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.