Home / 1,988.53-2,744.05-1,104.28

Finding the Fourth Proportional to 1,988.53, 2,744.05 and 1,104.28

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Solution

The fourth proportional to 1,988.53, 2,744.05 and 1,104.28 is: 1,523.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.53 : 2,744.05 = 1,104.28 : x
  2. Step 2: Convert to fraction form
    1,988.53/2,744.05 = 1,104.28/x
  3. Step 3: Cross multiply
    1,988.53x = 2,744.05 × 1,104.28
  4. Step 4: Simplify right side
    1,988.53x = 3,030,183.05
  5. Step 5: Solve for x
    x = 3,030,183.05/1,988.53
  6. Step 6: Final answer
    x = 1,523.83

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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.