Home / 6,892.20-9,511.62-3,906.92

Finding the Fourth Proportional to 6,892.20, 9,511.62 and 3,906.92

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Solution

The fourth proportional to 6,892.20, 9,511.62 and 3,906.92 is: 5,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,892.20 : 9,511.62 = 3,906.92 : x
  2. Step 2: Convert to fraction form
    6,892.20/9,511.62 = 3,906.92/x
  3. Step 3: Cross multiply
    6,892.20x = 9,511.62 × 3,906.92
  4. Step 4: Simplify right side
    6,892.20x = 37,161,138.41
  5. Step 5: Solve for x
    x = 37,161,138.41/6,892.20
  6. Step 6: Final answer
    x = 5,391.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.