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Finding the Fourth Proportional to 5,491.92, 8,238.93 and 2,860.68

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Solution

The fourth proportional to 5,491.92, 8,238.93 and 2,860.68 is: 4,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.92 : 8,238.93 = 2,860.68 : x
  2. Step 2: Convert to fraction form
    5,491.92/8,238.93 = 2,860.68/x
  3. Step 3: Cross multiply
    5,491.92x = 8,238.93 × 2,860.68
  4. Step 4: Simplify right side
    5,491.92x = 23,568,942.27
  5. Step 5: Solve for x
    x = 23,568,942.27/5,491.92
  6. Step 6: Final answer
    x = 4,291.57

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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.