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Finding the Fourth Proportional to 2,306.76, 3,183.03 and 1,311.83

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Solution

The fourth proportional to 2,306.76, 3,183.03 and 1,311.83 is: 1,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.76 : 3,183.03 = 1,311.83 : x
  2. Step 2: Convert to fraction form
    2,306.76/3,183.03 = 1,311.83/x
  3. Step 3: Cross multiply
    2,306.76x = 3,183.03 × 1,311.83
  4. Step 4: Simplify right side
    2,306.76x = 4,175,578.33
  5. Step 5: Solve for x
    x = 4,175,578.33/2,306.76
  6. Step 6: Final answer
    x = 1,810.15

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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.