Home / 2,306.38-3,183.26-1,311.55

Finding the Fourth Proportional to 2,306.38, 3,183.26 and 1,311.55

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Solution

The fourth proportional to 2,306.38, 3,183.26 and 1,311.55 is: 1,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.38 : 3,183.26 = 1,311.55 : x
  2. Step 2: Convert to fraction form
    2,306.38/3,183.26 = 1,311.55/x
  3. Step 3: Cross multiply
    2,306.38x = 3,183.26 × 1,311.55
  4. Step 4: Simplify right side
    2,306.38x = 4,175,004.65
  5. Step 5: Solve for x
    x = 4,175,004.65/2,306.38
  6. Step 6: Final answer
    x = 1,810.20

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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.