Home / 9,190.92-13,779.66-2,947.38

Finding the Fourth Proportional to 9,190.92, 13,779.66 and 2,947.38

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Solution

The fourth proportional to 9,190.92, 13,779.66 and 2,947.38 is: 4,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.92 : 13,779.66 = 2,947.38 : x
  2. Step 2: Convert to fraction form
    9,190.92/13,779.66 = 2,947.38/x
  3. Step 3: Cross multiply
    9,190.92x = 13,779.66 × 2,947.38
  4. Step 4: Simplify right side
    9,190.92x = 40,613,884.14
  5. Step 5: Solve for x
    x = 40,613,884.14/9,190.92
  6. Step 6: Final answer
    x = 4,418.91

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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.