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Finding the Fourth Proportional to 3,894.92, 5,842.22 and 2,162.44

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Solution

The fourth proportional to 3,894.92, 5,842.22 and 2,162.44 is: 3,243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.92 : 5,842.22 = 2,162.44 : x
  2. Step 2: Convert to fraction form
    3,894.92/5,842.22 = 2,162.44/x
  3. Step 3: Cross multiply
    3,894.92x = 5,842.22 × 2,162.44
  4. Step 4: Simplify right side
    3,894.92x = 12,633,450.22
  5. Step 5: Solve for x
    x = 12,633,450.22/3,894.92
  6. Step 6: Final answer
    x = 3,243.57

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1.5x scale

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.