Home / 6,121.66-9,183.69-1,961.35

Finding the Fourth Proportional to 6,121.66, 9,183.69 and 1,961.35

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Solution

The fourth proportional to 6,121.66, 9,183.69 and 1,961.35 is: 2,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.66 : 9,183.69 = 1,961.35 : x
  2. Step 2: Convert to fraction form
    6,121.66/9,183.69 = 1,961.35/x
  3. Step 3: Cross multiply
    6,121.66x = 9,183.69 × 1,961.35
  4. Step 4: Simplify right side
    6,121.66x = 18,012,448.92
  5. Step 5: Solve for x
    x = 18,012,448.92/6,121.66
  6. Step 6: Final answer
    x = 2,942.41

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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.