Home / 1,988.74-2,744.43-1,104.55

Finding the Fourth Proportional to 1,988.74, 2,744.43 and 1,104.55

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Solution

The fourth proportional to 1,988.74, 2,744.43 and 1,104.55 is: 1,524.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.74 : 2,744.43 = 1,104.55 : x
  2. Step 2: Convert to fraction form
    1,988.74/2,744.43 = 1,104.55/x
  3. Step 3: Cross multiply
    1,988.74x = 2,744.43 × 1,104.55
  4. Step 4: Simplify right side
    1,988.74x = 3,031,360.16
  5. Step 5: Solve for x
    x = 3,031,360.16/1,988.74
  6. Step 6: Final answer
    x = 1,524.26

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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.