Home / 1,988.69-2,744.36-1,104.49

Finding the Fourth Proportional to 1,988.69, 2,744.36 and 1,104.49

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Solution

The fourth proportional to 1,988.69, 2,744.36 and 1,104.49 is: 1,524.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.69 : 2,744.36 = 1,104.49 : x
  2. Step 2: Convert to fraction form
    1,988.69/2,744.36 = 1,104.49/x
  3. Step 3: Cross multiply
    1,988.69x = 2,744.36 × 1,104.49
  4. Step 4: Simplify right side
    1,988.69x = 3,031,114.08
  5. Step 5: Solve for x
    x = 3,031,114.08/1,988.69
  6. Step 6: Final answer
    x = 1,524.18

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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.