Home / 6,639.22-9,956.40-2,255.50

Finding the Fourth Proportional to 6,639.22, 9,956.40 and 2,255.50

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Solution

The fourth proportional to 6,639.22, 9,956.40 and 2,255.50 is: 3,382.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.22 : 9,956.40 = 2,255.50 : x
  2. Step 2: Convert to fraction form
    6,639.22/9,956.40 = 2,255.50/x
  3. Step 3: Cross multiply
    6,639.22x = 9,956.40 × 2,255.50
  4. Step 4: Simplify right side
    6,639.22x = 22,456,660.20
  5. Step 5: Solve for x
    x = 22,456,660.20/6,639.22
  6. Step 6: Final answer
    x = 3,382.42

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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.