Home / 2,306.49-3,183.03-1,311.72

Finding the Fourth Proportional to 2,306.49, 3,183.03 and 1,311.72

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Solution

The fourth proportional to 2,306.49, 3,183.03 and 1,311.72 is: 1,810.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.49 : 3,183.03 = 1,311.72 : x
  2. Step 2: Convert to fraction form
    2,306.49/3,183.03 = 1,311.72/x
  3. Step 3: Cross multiply
    2,306.49x = 3,183.03 × 1,311.72
  4. Step 4: Simplify right side
    2,306.49x = 4,175,244.11
  5. Step 5: Solve for x
    x = 4,175,244.11/2,306.49
  6. Step 6: Final answer
    x = 1,810.22

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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.