Home / 4,819.60-6,645.78-3,137.90

Finding the Fourth Proportional to 4,819.60, 6,645.78 and 3,137.90

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Solution

The fourth proportional to 4,819.60, 6,645.78 and 3,137.90 is: 4,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,819.60 : 6,645.78 = 3,137.90 : x
  2. Step 2: Convert to fraction form
    4,819.60/6,645.78 = 3,137.90/x
  3. Step 3: Cross multiply
    4,819.60x = 6,645.78 × 3,137.90
  4. Step 4: Simplify right side
    4,819.60x = 20,853,793.06
  5. Step 5: Solve for x
    x = 20,853,793.06/4,819.60
  6. Step 6: Final answer
    x = 4,326.87

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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.