Home / 2,234.64-3,086.46-1,939.80

Finding the Fourth Proportional to 2,234.64, 3,086.46 and 1,939.80

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Solution

The fourth proportional to 2,234.64, 3,086.46 and 1,939.80 is: 2,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.64 : 3,086.46 = 1,939.80 : x
  2. Step 2: Convert to fraction form
    2,234.64/3,086.46 = 1,939.80/x
  3. Step 3: Cross multiply
    2,234.64x = 3,086.46 × 1,939.80
  4. Step 4: Simplify right side
    2,234.64x = 5,987,115.11
  5. Step 5: Solve for x
    x = 5,987,115.11/2,234.64
  6. Step 6: Final answer
    x = 2,679.23

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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.