Home / 3,942.96-5,912.21-3,607.83

Finding the Fourth Proportional to 3,942.96, 5,912.21 and 3,607.83

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Solution

The fourth proportional to 3,942.96, 5,912.21 and 3,607.83 is: 5,409.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.96 : 5,912.21 = 3,607.83 : x
  2. Step 2: Convert to fraction form
    3,942.96/5,912.21 = 3,607.83/x
  3. Step 3: Cross multiply
    3,942.96x = 5,912.21 × 3,607.83
  4. Step 4: Simplify right side
    3,942.96x = 21,330,230.57
  5. Step 5: Solve for x
    x = 21,330,230.57/3,942.96
  6. Step 6: Final answer
    x = 5,409.70

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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.