Home / 3,942.33-5,905.58-1,961.98

Finding the Fourth Proportional to 3,942.33, 5,905.58 and 1,961.98

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Solution

The fourth proportional to 3,942.33, 5,905.58 and 1,961.98 is: 2,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.33 : 5,905.58 = 1,961.98 : x
  2. Step 2: Convert to fraction form
    3,942.33/5,905.58 = 1,961.98/x
  3. Step 3: Cross multiply
    3,942.33x = 5,905.58 × 1,961.98
  4. Step 4: Simplify right side
    3,942.33x = 11,586,638.49
  5. Step 5: Solve for x
    x = 11,586,638.49/3,942.33
  6. Step 6: Final answer
    x = 2,939.03

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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.