Home / 2,743.43-4,115.75-1,281.79

Finding the Fourth Proportional to 2,743.43, 4,115.75 and 1,281.79

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Solution

The fourth proportional to 2,743.43, 4,115.75 and 1,281.79 is: 1,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.43 : 4,115.75 = 1,281.79 : x
  2. Step 2: Convert to fraction form
    2,743.43/4,115.75 = 1,281.79/x
  3. Step 3: Cross multiply
    2,743.43x = 4,115.75 × 1,281.79
  4. Step 4: Simplify right side
    2,743.43x = 5,275,527.19
  5. Step 5: Solve for x
    x = 5,275,527.19/2,743.43
  6. Step 6: Final answer
    x = 1,922.97

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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.