Home / 2,819.20-4,227.96-1,434.16

Finding the Fourth Proportional to 2,819.20, 4,227.96 and 1,434.16

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Solution

The fourth proportional to 2,819.20, 4,227.96 and 1,434.16 is: 2,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.20 : 4,227.96 = 1,434.16 : x
  2. Step 2: Convert to fraction form
    2,819.20/4,227.96 = 1,434.16/x
  3. Step 3: Cross multiply
    2,819.20x = 4,227.96 × 1,434.16
  4. Step 4: Simplify right side
    2,819.20x = 6,063,571.11
  5. Step 5: Solve for x
    x = 6,063,571.11/2,819.20
  6. Step 6: Final answer
    x = 2,150.81

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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.