Home / 3,214.14-4,819.12-2,115.18

Finding the Fourth Proportional to 3,214.14, 4,819.12 and 2,115.18

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Solution

The fourth proportional to 3,214.14, 4,819.12 and 2,115.18 is: 3,171.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.14 : 4,819.12 = 2,115.18 : x
  2. Step 2: Convert to fraction form
    3,214.14/4,819.12 = 2,115.18/x
  3. Step 3: Cross multiply
    3,214.14x = 4,819.12 × 2,115.18
  4. Step 4: Simplify right side
    3,214.14x = 10,193,306.24
  5. Step 5: Solve for x
    x = 10,193,306.24/3,214.14
  6. Step 6: Final answer
    x = 3,171.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.