Home / 2,183.12-3,012.84-1,251.92

Finding the Fourth Proportional to 2,183.12, 3,012.84 and 1,251.92

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Solution

The fourth proportional to 2,183.12, 3,012.84 and 1,251.92 is: 1,727.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.12 : 3,012.84 = 1,251.92 : x
  2. Step 2: Convert to fraction form
    2,183.12/3,012.84 = 1,251.92/x
  3. Step 3: Cross multiply
    2,183.12x = 3,012.84 × 1,251.92
  4. Step 4: Simplify right side
    2,183.12x = 3,771,834.65
  5. Step 5: Solve for x
    x = 3,771,834.65/2,183.12
  6. Step 6: Final answer
    x = 1,727.73

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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.