Home / 6,121.78-9,186.30-2,226.49

Finding the Fourth Proportional to 6,121.78, 9,186.30 and 2,226.49

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Solution

The fourth proportional to 6,121.78, 9,186.30 and 2,226.49 is: 3,341.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.78 : 9,186.30 = 2,226.49 : x
  2. Step 2: Convert to fraction form
    6,121.78/9,186.30 = 2,226.49/x
  3. Step 3: Cross multiply
    6,121.78x = 9,186.30 × 2,226.49
  4. Step 4: Simplify right side
    6,121.78x = 20,453,205.09
  5. Step 5: Solve for x
    x = 20,453,205.09/6,121.78
  6. Step 6: Final answer
    x = 3,341.06

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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.