Home / 1,960.14-2,940.89-1,228.85

Finding the Fourth Proportional to 1,960.14, 2,940.89 and 1,228.85

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Solution

The fourth proportional to 1,960.14, 2,940.89 and 1,228.85 is: 1,843.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.14 : 2,940.89 = 1,228.85 : x
  2. Step 2: Convert to fraction form
    1,960.14/2,940.89 = 1,228.85/x
  3. Step 3: Cross multiply
    1,960.14x = 2,940.89 × 1,228.85
  4. Step 4: Simplify right side
    1,960.14x = 3,613,912.68
  5. Step 5: Solve for x
    x = 3,613,912.68/1,960.14
  6. Step 6: Final answer
    x = 1,843.70

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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.