Home / 2,306.78-3,183.39-1,258.85

Finding the Fourth Proportional to 2,306.78, 3,183.39 and 1,258.85

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Solution

The fourth proportional to 2,306.78, 3,183.39 and 1,258.85 is: 1,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.78 : 3,183.39 = 1,258.85 : x
  2. Step 2: Convert to fraction form
    2,306.78/3,183.39 = 1,258.85/x
  3. Step 3: Cross multiply
    2,306.78x = 3,183.39 × 1,258.85
  4. Step 4: Simplify right side
    2,306.78x = 4,007,394.58
  5. Step 5: Solve for x
    x = 4,007,394.58/2,306.78
  6. Step 6: Final answer
    x = 1,737.22

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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.