Home / 1,988.49-2,743.91-1,104.13

Finding the Fourth Proportional to 1,988.49, 2,743.91 and 1,104.13

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Solution

The fourth proportional to 1,988.49, 2,743.91 and 1,104.13 is: 1,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.49 : 2,743.91 = 1,104.13 : x
  2. Step 2: Convert to fraction form
    1,988.49/2,743.91 = 1,104.13/x
  3. Step 3: Cross multiply
    1,988.49x = 2,743.91 × 1,104.13
  4. Step 4: Simplify right side
    1,988.49x = 3,029,620.97
  5. Step 5: Solve for x
    x = 3,029,620.97/1,988.49
  6. Step 6: Final answer
    x = 1,523.58

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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.