Home / 2,786.38-3,845.21-1,544.38

Finding the Fourth Proportional to 2,786.38, 3,845.21 and 1,544.38

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Solution

The fourth proportional to 2,786.38, 3,845.21 and 1,544.38 is: 2,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.38 : 3,845.21 = 1,544.38 : x
  2. Step 2: Convert to fraction form
    2,786.38/3,845.21 = 1,544.38/x
  3. Step 3: Cross multiply
    2,786.38x = 3,845.21 × 1,544.38
  4. Step 4: Simplify right side
    2,786.38x = 5,938,438.47
  5. Step 5: Solve for x
    x = 5,938,438.47/2,786.38
  6. Step 6: Final answer
    x = 2,131.24

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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.