Home / 1,988.29-2,744.01-1,104.07

Finding the Fourth Proportional to 1,988.29, 2,744.01 and 1,104.07

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Solution

The fourth proportional to 1,988.29, 2,744.01 and 1,104.07 is: 1,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.29 : 2,744.01 = 1,104.07 : x
  2. Step 2: Convert to fraction form
    1,988.29/2,744.01 = 1,104.07/x
  3. Step 3: Cross multiply
    1,988.29x = 2,744.01 × 1,104.07
  4. Step 4: Simplify right side
    1,988.29x = 3,029,579.12
  5. Step 5: Solve for x
    x = 3,029,579.12/1,988.29
  6. Step 6: Final answer
    x = 1,523.71

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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.