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Finding the Fourth Proportional to 2,450.92, 3,676.20 and 719.68

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Solution

The fourth proportional to 2,450.92, 3,676.20 and 719.68 is: 1,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.92 : 3,676.20 = 719.68 : x
  2. Step 2: Convert to fraction form
    2,450.92/3,676.20 = 719.68/x
  3. Step 3: Cross multiply
    2,450.92x = 3,676.20 × 719.68
  4. Step 4: Simplify right side
    2,450.92x = 2,645,687.62
  5. Step 5: Solve for x
    x = 2,645,687.62/2,450.92
  6. Step 6: Final answer
    x = 1,079.47

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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.