Home / 7,628.30-11,439.80-3,625.22

Finding the Fourth Proportional to 7,628.30, 11,439.80 and 3,625.22

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Solution

The fourth proportional to 7,628.30, 11,439.80 and 3,625.22 is: 5,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.30 : 11,439.80 = 3,625.22 : x
  2. Step 2: Convert to fraction form
    7,628.30/11,439.80 = 3,625.22/x
  3. Step 3: Cross multiply
    7,628.30x = 11,439.80 × 3,625.22
  4. Step 4: Simplify right side
    7,628.30x = 41,471,716.43
  5. Step 5: Solve for x
    x = 41,471,716.43/7,628.30
  6. Step 6: Final answer
    x = 5,436.56

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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.