Home / 3,956.58-5,449.28-3,115.94

Finding the Fourth Proportional to 3,956.58, 5,449.28 and 3,115.94

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Solution

The fourth proportional to 3,956.58, 5,449.28 and 3,115.94 is: 4,291.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.58 : 5,449.28 = 3,115.94 : x
  2. Step 2: Convert to fraction form
    3,956.58/5,449.28 = 3,115.94/x
  3. Step 3: Cross multiply
    3,956.58x = 5,449.28 × 3,115.94
  4. Step 4: Simplify right side
    3,956.58x = 16,979,586.70
  5. Step 5: Solve for x
    x = 16,979,586.70/3,956.58
  6. Step 6: Final answer
    x = 4,291.48

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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.