Home / 4,142.44-5,717.82-2,815.96

Finding the Fourth Proportional to 4,142.44, 5,717.82 and 2,815.96

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Solution

The fourth proportional to 4,142.44, 5,717.82 and 2,815.96 is: 3,886.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,142.44 : 5,717.82 = 2,815.96 : x
  2. Step 2: Convert to fraction form
    4,142.44/5,717.82 = 2,815.96/x
  3. Step 3: Cross multiply
    4,142.44x = 5,717.82 × 2,815.96
  4. Step 4: Simplify right side
    4,142.44x = 16,101,152.41
  5. Step 5: Solve for x
    x = 16,101,152.41/4,142.44
  6. Step 6: Final answer
    x = 3,886.88

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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.