Home / 2,949.92-4,420.76-2,218.64

Finding the Fourth Proportional to 2,949.92, 4,420.76 and 2,218.64

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Solution

The fourth proportional to 2,949.92, 4,420.76 and 2,218.64 is: 3,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.92 : 4,420.76 = 2,218.64 : x
  2. Step 2: Convert to fraction form
    2,949.92/4,420.76 = 2,218.64/x
  3. Step 3: Cross multiply
    2,949.92x = 4,420.76 × 2,218.64
  4. Step 4: Simplify right side
    2,949.92x = 9,808,074.97
  5. Step 5: Solve for x
    x = 9,808,074.97/2,949.92
  6. Step 6: Final answer
    x = 3,324.86

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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.