Home / 7,940.27-11,912-2,675.07

Finding the Fourth Proportional to 7,940.27, 11,912 and 2,675.07

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Solution

The fourth proportional to 7,940.27, 11,912 and 2,675.07 is: 4,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.27 : 11,912 = 2,675.07 : x
  2. Step 2: Convert to fraction form
    7,940.27/11,912 = 2,675.07/x
  3. Step 3: Cross multiply
    7,940.27x = 11,912 × 2,675.07
  4. Step 4: Simplify right side
    7,940.27x = 31,865,433.84
  5. Step 5: Solve for x
    x = 31,865,433.84/7,940.27
  6. Step 6: Final answer
    x = 4,013.14

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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.