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Finding the Fourth Proportional to 3,958.86, 5,936.54 and 2,109.58

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Solution

The fourth proportional to 3,958.86, 5,936.54 and 2,109.58 is: 3,163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.86 : 5,936.54 = 2,109.58 : x
  2. Step 2: Convert to fraction form
    3,958.86/5,936.54 = 2,109.58/x
  3. Step 3: Cross multiply
    3,958.86x = 5,936.54 × 2,109.58
  4. Step 4: Simplify right side
    3,958.86x = 12,523,592.53
  5. Step 5: Solve for x
    x = 12,523,592.53/3,958.86
  6. Step 6: Final answer
    x = 3,163.44

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1.5x scale

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.