Home / 1,988.61-2,744.34-1,104.47

Finding the Fourth Proportional to 1,988.61, 2,744.34 and 1,104.47

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Solution

The fourth proportional to 1,988.61, 2,744.34 and 1,104.47 is: 1,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.61 : 2,744.34 = 1,104.47 : x
  2. Step 2: Convert to fraction form
    1,988.61/2,744.34 = 1,104.47/x
  3. Step 3: Cross multiply
    1,988.61x = 2,744.34 × 1,104.47
  4. Step 4: Simplify right side
    1,988.61x = 3,031,052.97
  5. Step 5: Solve for x
    x = 3,031,052.97/1,988.61
  6. Step 6: Final answer
    x = 1,524.20

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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.