Home / 2,786.91-3,844.06-2,331.38

Finding the Fourth Proportional to 2,786.91, 3,844.06 and 2,331.38

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Solution

The fourth proportional to 2,786.91, 3,844.06 and 2,331.38 is: 3,215.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.91 : 3,844.06 = 2,331.38 : x
  2. Step 2: Convert to fraction form
    2,786.91/3,844.06 = 2,331.38/x
  3. Step 3: Cross multiply
    2,786.91x = 3,844.06 × 2,331.38
  4. Step 4: Simplify right side
    2,786.91x = 8,961,968.38
  5. Step 5: Solve for x
    x = 8,961,968.38/2,786.91
  6. Step 6: Final answer
    x = 3,215.74

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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.