Home / 2,183.20-3,279-1,871.56

Finding the Fourth Proportional to 2,183.20, 3,279 and 1,871.56

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Solution

The fourth proportional to 2,183.20, 3,279 and 1,871.56 is: 2,810.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.20 : 3,279 = 1,871.56 : x
  2. Step 2: Convert to fraction form
    2,183.20/3,279 = 1,871.56/x
  3. Step 3: Cross multiply
    2,183.20x = 3,279 × 1,871.56
  4. Step 4: Simplify right side
    2,183.20x = 6,136,845.24
  5. Step 5: Solve for x
    x = 6,136,845.24/2,183.20
  6. Step 6: Final answer
    x = 2,810.94

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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.