Home / 7,092.36-10,640.08-2,161.87

Finding the Fourth Proportional to 7,092.36, 10,640.08 and 2,161.87

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Solution

The fourth proportional to 7,092.36, 10,640.08 and 2,161.87 is: 3,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.36 : 10,640.08 = 2,161.87 : x
  2. Step 2: Convert to fraction form
    7,092.36/10,640.08 = 2,161.87/x
  3. Step 3: Cross multiply
    7,092.36x = 10,640.08 × 2,161.87
  4. Step 4: Simplify right side
    7,092.36x = 23,002,469.75
  5. Step 5: Solve for x
    x = 23,002,469.75/7,092.36
  6. Step 6: Final answer
    x = 3,243.27

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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.