Home / 2,621.91-3,933.41-2,192.07

Finding the Fourth Proportional to 2,621.91, 3,933.41 and 2,192.07

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Solution

The fourth proportional to 2,621.91, 3,933.41 and 2,192.07 is: 3,288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621.91 : 3,933.41 = 2,192.07 : x
  2. Step 2: Convert to fraction form
    2,621.91/3,933.41 = 2,192.07/x
  3. Step 3: Cross multiply
    2,621.91x = 3,933.41 × 2,192.07
  4. Step 4: Simplify right side
    2,621.91x = 8,622,299.10
  5. Step 5: Solve for x
    x = 8,622,299.10/2,621.91
  6. Step 6: Final answer
    x = 3,288.56

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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.