Home / 1,348.25-2,019.79-826.73

Finding the Fourth Proportional to 1,348.25, 2,019.79 and 826.73

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Solution

The fourth proportional to 1,348.25, 2,019.79 and 826.73 is: 1,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.25 : 2,019.79 = 826.73 : x
  2. Step 2: Convert to fraction form
    1,348.25/2,019.79 = 826.73/x
  3. Step 3: Cross multiply
    1,348.25x = 2,019.79 × 826.73
  4. Step 4: Simplify right side
    1,348.25x = 1,669,819.38
  5. Step 5: Solve for x
    x = 1,669,819.38/1,348.25
  6. Step 6: Final answer
    x = 1,238.51

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1.5x scale

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.