Home / 3,218.11-4,819.29-2,906.47

Finding the Fourth Proportional to 3,218.11, 4,819.29 and 2,906.47

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Solution

The fourth proportional to 3,218.11, 4,819.29 and 2,906.47 is: 4,352.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.11 : 4,819.29 = 2,906.47 : x
  2. Step 2: Convert to fraction form
    3,218.11/4,819.29 = 2,906.47/x
  3. Step 3: Cross multiply
    3,218.11x = 4,819.29 × 2,906.47
  4. Step 4: Simplify right side
    3,218.11x = 14,007,121.81
  5. Step 5: Solve for x
    x = 14,007,121.81/3,218.11
  6. Step 6: Final answer
    x = 4,352.59

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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.