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Finding the Fourth Proportional to 2,183.81, 3,275.67 and 540.38

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Solution

The fourth proportional to 2,183.81, 3,275.67 and 540.38 is: 810.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.81 : 3,275.67 = 540.38 : x
  2. Step 2: Convert to fraction form
    2,183.81/3,275.67 = 540.38/x
  3. Step 3: Cross multiply
    2,183.81x = 3,275.67 × 540.38
  4. Step 4: Simplify right side
    2,183.81x = 1,770,106.55
  5. Step 5: Solve for x
    x = 1,770,106.55/2,183.81
  6. Step 6: Final answer
    x = 810.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.