Home / 3,212.66-4,818.92-1,481.28

Finding the Fourth Proportional to 3,212.66, 4,818.92 and 1,481.28

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Solution

The fourth proportional to 3,212.66, 4,818.92 and 1,481.28 is: 2,221.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.66 : 4,818.92 = 1,481.28 : x
  2. Step 2: Convert to fraction form
    3,212.66/4,818.92 = 1,481.28/x
  3. Step 3: Cross multiply
    3,212.66x = 4,818.92 × 1,481.28
  4. Step 4: Simplify right side
    3,212.66x = 7,138,169.82
  5. Step 5: Solve for x
    x = 7,138,169.82/3,212.66
  6. Step 6: Final answer
    x = 2,221.89

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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.