Home / 9,319.38-13,979.18-2,745.69

Finding the Fourth Proportional to 9,319.38, 13,979.18 and 2,745.69

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Solution

The fourth proportional to 9,319.38, 13,979.18 and 2,745.69 is: 4,118.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.38 : 13,979.18 = 2,745.69 : x
  2. Step 2: Convert to fraction form
    9,319.38/13,979.18 = 2,745.69/x
  3. Step 3: Cross multiply
    9,319.38x = 13,979.18 × 2,745.69
  4. Step 4: Simplify right side
    9,319.38x = 38,382,481.01
  5. Step 5: Solve for x
    x = 38,382,481.01/9,319.38
  6. Step 6: Final answer
    x = 4,118.57

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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.