Home / 7,379.38-11,071.22-2,185.38

Finding the Fourth Proportional to 7,379.38, 11,071.22 and 2,185.38

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Solution

The fourth proportional to 7,379.38, 11,071.22 and 2,185.38 is: 3,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.38 : 11,071.22 = 2,185.38 : x
  2. Step 2: Convert to fraction form
    7,379.38/11,071.22 = 2,185.38/x
  3. Step 3: Cross multiply
    7,379.38x = 11,071.22 × 2,185.38
  4. Step 4: Simplify right side
    7,379.38x = 24,194,822.76
  5. Step 5: Solve for x
    x = 24,194,822.76/7,379.38
  6. Step 6: Final answer
    x = 3,278.71

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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.