Home / 2,743.39-4,112.92-1,281.07

Finding the Fourth Proportional to 2,743.39, 4,112.92 and 1,281.07

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Solution

The fourth proportional to 2,743.39, 4,112.92 and 1,281.07 is: 1,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.39 : 4,112.92 = 1,281.07 : x
  2. Step 2: Convert to fraction form
    2,743.39/4,112.92 = 1,281.07/x
  3. Step 3: Cross multiply
    2,743.39x = 4,112.92 × 1,281.07
  4. Step 4: Simplify right side
    2,743.39x = 5,268,929.74
  5. Step 5: Solve for x
    x = 5,268,929.74/2,743.39
  6. Step 6: Final answer
    x = 1,920.59

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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.