Home / 2,786.38-4,183.08-2,378.14

Finding the Fourth Proportional to 2,786.38, 4,183.08 and 2,378.14

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Solution

The fourth proportional to 2,786.38, 4,183.08 and 2,378.14 is: 3,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.38 : 4,183.08 = 2,378.14 : x
  2. Step 2: Convert to fraction form
    2,786.38/4,183.08 = 2,378.14/x
  3. Step 3: Cross multiply
    2,786.38x = 4,183.08 × 2,378.14
  4. Step 4: Simplify right side
    2,786.38x = 9,947,949.87
  5. Step 5: Solve for x
    x = 9,947,949.87/2,786.38
  6. Step 6: Final answer
    x = 3,570.21

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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.