Home / 2,069.38-3,104.03-836.78

Finding the Fourth Proportional to 2,069.38, 3,104.03 and 836.78

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Solution

The fourth proportional to 2,069.38, 3,104.03 and 836.78 is: 1,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.38 : 3,104.03 = 836.78 : x
  2. Step 2: Convert to fraction form
    2,069.38/3,104.03 = 836.78/x
  3. Step 3: Cross multiply
    2,069.38x = 3,104.03 × 836.78
  4. Step 4: Simplify right side
    2,069.38x = 2,597,376.80
  5. Step 5: Solve for x
    x = 2,597,376.80/2,069.38
  6. Step 6: Final answer
    x = 1,255.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.