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Finding the Fourth Proportional to 3,829.62, 5,294.43 and 3,238.86

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Solution

The fourth proportional to 3,829.62, 5,294.43 and 3,238.86 is: 4,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,829.62 : 5,294.43 = 3,238.86 : x
  2. Step 2: Convert to fraction form
    3,829.62/5,294.43 = 3,238.86/x
  3. Step 3: Cross multiply
    3,829.62x = 5,294.43 × 3,238.86
  4. Step 4: Simplify right side
    3,829.62x = 17,147,917.55
  5. Step 5: Solve for x
    x = 17,147,917.55/3,829.62
  6. Step 6: Final answer
    x = 4,477.71

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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.