Home / 3,215.28-4,819.24-1,363.68

Finding the Fourth Proportional to 3,215.28, 4,819.24 and 1,363.68

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Solution

The fourth proportional to 3,215.28, 4,819.24 and 1,363.68 is: 2,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.28 : 4,819.24 = 1,363.68 : x
  2. Step 2: Convert to fraction form
    3,215.28/4,819.24 = 1,363.68/x
  3. Step 3: Cross multiply
    3,215.28x = 4,819.24 × 1,363.68
  4. Step 4: Simplify right side
    3,215.28x = 6,571,901.20
  5. Step 5: Solve for x
    x = 6,571,901.20/3,215.28
  6. Step 6: Final answer
    x = 2,043.96

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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.