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Finding the Fourth Proportional to 2,789.37, 4,183.92 and 2,719.62

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Solution

The fourth proportional to 2,789.37, 4,183.92 and 2,719.62 is: 4,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.37 : 4,183.92 = 2,719.62 : x
  2. Step 2: Convert to fraction form
    2,789.37/4,183.92 = 2,719.62/x
  3. Step 3: Cross multiply
    2,789.37x = 4,183.92 × 2,719.62
  4. Step 4: Simplify right side
    2,789.37x = 11,378,672.51
  5. Step 5: Solve for x
    x = 11,378,672.51/2,789.37
  6. Step 6: Final answer
    x = 4,079.30

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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.