Home / 2,183.80-3,251-2,170.83

Finding the Fourth Proportional to 2,183.80, 3,251 and 2,170.83

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Solution

The fourth proportional to 2,183.80, 3,251 and 2,170.83 is: 3,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.80 : 3,251 = 2,170.83 : x
  2. Step 2: Convert to fraction form
    2,183.80/3,251 = 2,170.83/x
  3. Step 3: Cross multiply
    2,183.80x = 3,251 × 2,170.83
  4. Step 4: Simplify right side
    2,183.80x = 7,057,368.33
  5. Step 5: Solve for x
    x = 7,057,368.33/2,183.80
  6. Step 6: Final answer
    x = 3,231.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.