Home / 1,988.27-2,743.93-1,104.09

Finding the Fourth Proportional to 1,988.27, 2,743.93 and 1,104.09

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Solution

The fourth proportional to 1,988.27, 2,743.93 and 1,104.09 is: 1,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.27 : 2,743.93 = 1,104.09 : x
  2. Step 2: Convert to fraction form
    1,988.27/2,743.93 = 1,104.09/x
  3. Step 3: Cross multiply
    1,988.27x = 2,743.93 × 1,104.09
  4. Step 4: Simplify right side
    1,988.27x = 3,029,531.95
  5. Step 5: Solve for x
    x = 3,029,531.95/1,988.27
  6. Step 6: Final answer
    x = 1,523.71

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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.