Home / 3,829.76-5,286.41-2,257.75

Finding the Fourth Proportional to 3,829.76, 5,286.41 and 2,257.75

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Solution

The fourth proportional to 3,829.76, 5,286.41 and 2,257.75 is: 3,116.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.76 : 5,286.41 = 2,257.75 : x
  2. Step 2: Convert to fraction form
    3,829.76/5,286.41 = 2,257.75/x
  3. Step 3: Cross multiply
    3,829.76x = 5,286.41 × 2,257.75
  4. Step 4: Simplify right side
    3,829.76x = 11,935,392.18
  5. Step 5: Solve for x
    x = 11,935,392.18/3,829.76
  6. Step 6: Final answer
    x = 3,116.49

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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.