Home / 3,936.11-5,431.26-2,257.58

Finding the Fourth Proportional to 3,936.11, 5,431.26 and 2,257.58

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Solution

The fourth proportional to 3,936.11, 5,431.26 and 2,257.58 is: 3,115.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.11 : 5,431.26 = 2,257.58 : x
  2. Step 2: Convert to fraction form
    3,936.11/5,431.26 = 2,257.58/x
  3. Step 3: Cross multiply
    3,936.11x = 5,431.26 × 2,257.58
  4. Step 4: Simplify right side
    3,936.11x = 12,261,517.53
  5. Step 5: Solve for x
    x = 12,261,517.53/3,936.11
  6. Step 6: Final answer
    x = 3,115.14

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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.