Home / 1,988.68-2,744.14-1,104.38

Finding the Fourth Proportional to 1,988.68, 2,744.14 and 1,104.38

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Solution

The fourth proportional to 1,988.68, 2,744.14 and 1,104.38 is: 1,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.68 : 2,744.14 = 1,104.38 : x
  2. Step 2: Convert to fraction form
    1,988.68/2,744.14 = 1,104.38/x
  3. Step 3: Cross multiply
    1,988.68x = 2,744.14 × 1,104.38
  4. Step 4: Simplify right side
    1,988.68x = 3,030,573.33
  5. Step 5: Solve for x
    x = 3,030,573.33/1,988.68
  6. Step 6: Final answer
    x = 1,523.91

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1.5x scale

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.