Home / 1,988.68-2,744.14-1,104.27

Finding the Fourth Proportional to 1,988.68, 2,744.14 and 1,104.27

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Solution

The fourth proportional to 1,988.68, 2,744.14 and 1,104.27 is: 1,523.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.68 : 2,744.14 = 1,104.27 : x
  2. Step 2: Convert to fraction form
    1,988.68/2,744.14 = 1,104.27/x
  3. Step 3: Cross multiply
    1,988.68x = 2,744.14 × 1,104.27
  4. Step 4: Simplify right side
    1,988.68x = 3,030,271.48
  5. Step 5: Solve for x
    x = 3,030,271.48/1,988.68
  6. Step 6: Final answer
    x = 1,523.76

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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.