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Finding the Fourth Proportional to 6,968.42, 9,616.39 and 3,781.73

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Solution

The fourth proportional to 6,968.42, 9,616.39 and 3,781.73 is: 5,218.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,968.42 : 9,616.39 = 3,781.73 : x
  2. Step 2: Convert to fraction form
    6,968.42/9,616.39 = 3,781.73/x
  3. Step 3: Cross multiply
    6,968.42x = 9,616.39 × 3,781.73
  4. Step 4: Simplify right side
    6,968.42x = 36,366,590.55
  5. Step 5: Solve for x
    x = 36,366,590.55/6,968.42
  6. Step 6: Final answer
    x = 5,218.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.