Home / 3,942.36-5,912.82-1,020.48

Finding the Fourth Proportional to 3,942.36, 5,912.82 and 1,020.48

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Solution

The fourth proportional to 3,942.36, 5,912.82 and 1,020.48 is: 1,530.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.36 : 5,912.82 = 1,020.48 : x
  2. Step 2: Convert to fraction form
    3,942.36/5,912.82 = 1,020.48/x
  3. Step 3: Cross multiply
    3,942.36x = 5,912.82 × 1,020.48
  4. Step 4: Simplify right side
    3,942.36x = 6,033,914.55
  5. Step 5: Solve for x
    x = 6,033,914.55/3,942.36
  6. Step 6: Final answer
    x = 1,530.53

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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.