Home / 6,619.83-9,930.69-2,235.78

Finding the Fourth Proportional to 6,619.83, 9,930.69 and 2,235.78

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Solution

The fourth proportional to 6,619.83, 9,930.69 and 2,235.78 is: 3,353.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.83 : 9,930.69 = 2,235.78 : x
  2. Step 2: Convert to fraction form
    6,619.83/9,930.69 = 2,235.78/x
  3. Step 3: Cross multiply
    6,619.83x = 9,930.69 × 2,235.78
  4. Step 4: Simplify right side
    6,619.83x = 22,202,838.09
  5. Step 5: Solve for x
    x = 22,202,838.09/6,619.83
  6. Step 6: Final answer
    x = 3,353.99

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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.