Home / 3,351.11-4,629.99-2,789.78

Finding the Fourth Proportional to 3,351.11, 4,629.99 and 2,789.78

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Solution

The fourth proportional to 3,351.11, 4,629.99 and 2,789.78 is: 3,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.11 : 4,629.99 = 2,789.78 : x
  2. Step 2: Convert to fraction form
    3,351.11/4,629.99 = 2,789.78/x
  3. Step 3: Cross multiply
    3,351.11x = 4,629.99 × 2,789.78
  4. Step 4: Simplify right side
    3,351.11x = 12,916,653.50
  5. Step 5: Solve for x
    x = 12,916,653.50/3,351.11
  6. Step 6: Final answer
    x = 3,854.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.