Home / 2,183.78-3,013.38-1,299.46

Finding the Fourth Proportional to 2,183.78, 3,013.38 and 1,299.46

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Solution

The fourth proportional to 2,183.78, 3,013.38 and 1,299.46 is: 1,793.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.78 : 3,013.38 = 1,299.46 : x
  2. Step 2: Convert to fraction form
    2,183.78/3,013.38 = 1,299.46/x
  3. Step 3: Cross multiply
    2,183.78x = 3,013.38 × 1,299.46
  4. Step 4: Simplify right side
    2,183.78x = 3,915,759.24
  5. Step 5: Solve for x
    x = 3,915,759.24/2,183.78
  6. Step 6: Final answer
    x = 1,793.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.