Home / 6,121.73-9,182.46-1,961.75

Finding the Fourth Proportional to 6,121.73, 9,182.46 and 1,961.75

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Solution

The fourth proportional to 6,121.73, 9,182.46 and 1,961.75 is: 2,942.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.73 : 9,182.46 = 1,961.75 : x
  2. Step 2: Convert to fraction form
    6,121.73/9,182.46 = 1,961.75/x
  3. Step 3: Cross multiply
    6,121.73x = 9,182.46 × 1,961.75
  4. Step 4: Simplify right side
    6,121.73x = 18,013,644.99
  5. Step 5: Solve for x
    x = 18,013,644.99/6,121.73
  6. Step 6: Final answer
    x = 2,942.58

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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.