Home / 6,243.20-9,371.84-3,936

Finding the Fourth Proportional to 6,243.20, 9,371.84 and 3,936

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Solution

The fourth proportional to 6,243.20, 9,371.84 and 3,936 is: 5,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.20 : 9,371.84 = 3,936 : x
  2. Step 2: Convert to fraction form
    6,243.20/9,371.84 = 3,936/x
  3. Step 3: Cross multiply
    6,243.20x = 9,371.84 × 3,936
  4. Step 4: Simplify right side
    6,243.20x = 36,887,562.24
  5. Step 5: Solve for x
    x = 36,887,562.24/6,243.20
  6. Step 6: Final answer
    x = 5,908.44

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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.