Home / 2,786.77-3,844.97-2,195.47

Finding the Fourth Proportional to 2,786.77, 3,844.97 and 2,195.47

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Solution

The fourth proportional to 2,786.77, 3,844.97 and 2,195.47 is: 3,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.77 : 3,844.97 = 2,195.47 : x
  2. Step 2: Convert to fraction form
    2,786.77/3,844.97 = 2,195.47/x
  3. Step 3: Cross multiply
    2,786.77x = 3,844.97 × 2,195.47
  4. Step 4: Simplify right side
    2,786.77x = 8,441,505.31
  5. Step 5: Solve for x
    x = 8,441,505.31/2,786.77
  6. Step 6: Final answer
    x = 3,029.14

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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.