Home / 2,694.47-4,042.50-845.78

Finding the Fourth Proportional to 2,694.47, 4,042.50 and 845.78

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Solution

The fourth proportional to 2,694.47, 4,042.50 and 845.78 is: 1,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.47 : 4,042.50 = 845.78 : x
  2. Step 2: Convert to fraction form
    2,694.47/4,042.50 = 845.78/x
  3. Step 3: Cross multiply
    2,694.47x = 4,042.50 × 845.78
  4. Step 4: Simplify right side
    2,694.47x = 3,419,065.65
  5. Step 5: Solve for x
    x = 3,419,065.65/2,694.47
  6. Step 6: Final answer
    x = 1,268.92

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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.