Home / 3,642.63-5,450.14-2,162.65

Finding the Fourth Proportional to 3,642.63, 5,450.14 and 2,162.65

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Solution

The fourth proportional to 3,642.63, 5,450.14 and 2,162.65 is: 3,235.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.63 : 5,450.14 = 2,162.65 : x
  2. Step 2: Convert to fraction form
    3,642.63/5,450.14 = 2,162.65/x
  3. Step 3: Cross multiply
    3,642.63x = 5,450.14 × 2,162.65
  4. Step 4: Simplify right side
    3,642.63x = 11,786,745.27
  5. Step 5: Solve for x
    x = 11,786,745.27/3,642.63
  6. Step 6: Final answer
    x = 3,235.78

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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.