Home / 6,619.71-9,930.78-2,726.85

Finding the Fourth Proportional to 6,619.71, 9,930.78 and 2,726.85

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Solution

The fourth proportional to 6,619.71, 9,930.78 and 2,726.85 is: 4,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.71 : 9,930.78 = 2,726.85 : x
  2. Step 2: Convert to fraction form
    6,619.71/9,930.78 = 2,726.85/x
  3. Step 3: Cross multiply
    6,619.71x = 9,930.78 × 2,726.85
  4. Step 4: Simplify right side
    6,619.71x = 27,079,747.44
  5. Step 5: Solve for x
    x = 27,079,747.44/6,619.71
  6. Step 6: Final answer
    x = 4,090.78

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1.5x scale

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.