Home / 6,680.20-10,022.70-2,785.80

Finding the Fourth Proportional to 6,680.20, 10,022.70 and 2,785.80

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Solution

The fourth proportional to 6,680.20, 10,022.70 and 2,785.80 is: 4,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.20 : 10,022.70 = 2,785.80 : x
  2. Step 2: Convert to fraction form
    6,680.20/10,022.70 = 2,785.80/x
  3. Step 3: Cross multiply
    6,680.20x = 10,022.70 × 2,785.80
  4. Step 4: Simplify right side
    6,680.20x = 27,921,237.66
  5. Step 5: Solve for x
    x = 27,921,237.66/6,680.20
  6. Step 6: Final answer
    x = 4,179.70

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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.