Home / 1,988.24-2,743.78-1,104.04

Finding the Fourth Proportional to 1,988.24, 2,743.78 and 1,104.04

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Solution

The fourth proportional to 1,988.24, 2,743.78 and 1,104.04 is: 1,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.24 : 2,743.78 = 1,104.04 : x
  2. Step 2: Convert to fraction form
    1,988.24/2,743.78 = 1,104.04/x
  3. Step 3: Cross multiply
    1,988.24x = 2,743.78 × 1,104.04
  4. Step 4: Simplify right side
    1,988.24x = 3,029,242.87
  5. Step 5: Solve for x
    x = 3,029,242.87/1,988.24
  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.