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Finding the Fourth Proportional to 2,183.42, 3,275.12 and 539.94

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Solution

The fourth proportional to 2,183.42, 3,275.12 and 539.94 is: 809.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.42 : 3,275.12 = 539.94 : x
  2. Step 2: Convert to fraction form
    2,183.42/3,275.12 = 539.94/x
  3. Step 3: Cross multiply
    2,183.42x = 3,275.12 × 539.94
  4. Step 4: Simplify right side
    2,183.42x = 1,768,381.92
  5. Step 5: Solve for x
    x = 1,768,381.92/2,183.42
  6. Step 6: Final answer
    x = 809.91

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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.