Home / 3,213.17-4,819.67-1,481.79

Finding the Fourth Proportional to 3,213.17, 4,819.67 and 1,481.79

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Solution

The fourth proportional to 3,213.17, 4,819.67 and 1,481.79 is: 2,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,213.17 : 4,819.67 = 1,481.79 : x
  2. Step 2: Convert to fraction form
    3,213.17/4,819.67 = 1,481.79/x
  3. Step 3: Cross multiply
    3,213.17x = 4,819.67 × 1,481.79
  4. Step 4: Simplify right side
    3,213.17x = 7,141,742.51
  5. Step 5: Solve for x
    x = 7,141,742.51/3,213.17
  6. Step 6: Final answer
    x = 2,222.65

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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.