Home / 1,989.38-2,744.79-1,244.10

Finding the Fourth Proportional to 1,989.38, 2,744.79 and 1,244.10

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Solution

The fourth proportional to 1,989.38, 2,744.79 and 1,244.10 is: 1,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.38 : 2,744.79 = 1,244.10 : x
  2. Step 2: Convert to fraction form
    1,989.38/2,744.79 = 1,244.10/x
  3. Step 3: Cross multiply
    1,989.38x = 2,744.79 × 1,244.10
  4. Step 4: Simplify right side
    1,989.38x = 3,414,793.24
  5. Step 5: Solve for x
    x = 3,414,793.24/1,989.38
  6. Step 6: Final answer
    x = 1,716.51

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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.