Home / 3,819.56-5,271.86-3,078.44

Finding the Fourth Proportional to 3,819.56, 5,271.86 and 3,078.44

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Solution

The fourth proportional to 3,819.56, 5,271.86 and 3,078.44 is: 4,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.56 : 5,271.86 = 3,078.44 : x
  2. Step 2: Convert to fraction form
    3,819.56/5,271.86 = 3,078.44/x
  3. Step 3: Cross multiply
    3,819.56x = 5,271.86 × 3,078.44
  4. Step 4: Simplify right side
    3,819.56x = 16,229,104.70
  5. Step 5: Solve for x
    x = 16,229,104.70/3,819.56
  6. Step 6: Final answer
    x = 4,248.95

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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.