Home / 9,181.90-13,772.91-2,942.86

Finding the Fourth Proportional to 9,181.90, 13,772.91 and 2,942.86

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Solution

The fourth proportional to 9,181.90, 13,772.91 and 2,942.86 is: 4,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.90 : 13,772.91 = 2,942.86 : x
  2. Step 2: Convert to fraction form
    9,181.90/13,772.91 = 2,942.86/x
  3. Step 3: Cross multiply
    9,181.90x = 13,772.91 × 2,942.86
  4. Step 4: Simplify right side
    9,181.90x = 40,531,745.92
  5. Step 5: Solve for x
    x = 40,531,745.92/9,181.90
  6. Step 6: Final answer
    x = 4,414.31

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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.