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Finding the Fourth Proportional to 6,779, 10,168.50 and 2,162

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Solution

The fourth proportional to 6,779, 10,168.50 and 2,162 is: 3,243

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779 : 10,168.50 = 2,162 : x
  2. Step 2: Convert to fraction form
    6,779/10,168.50 = 2,162/x
  3. Step 3: Cross multiply
    6,779x = 10,168.50 × 2,162
  4. Step 4: Simplify right side
    6,779x = 21,984,297
  5. Step 5: Solve for x
    x = 21,984,297/6,779
  6. Step 6: Final answer
    x = 3,243

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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.