Home / 3,118.24-4,293.97-2,786.55

Finding the Fourth Proportional to 3,118.24, 4,293.97 and 2,786.55

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Solution

The fourth proportional to 3,118.24, 4,293.97 and 2,786.55 is: 3,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.24 : 4,293.97 = 2,786.55 : x
  2. Step 2: Convert to fraction form
    3,118.24/4,293.97 = 2,786.55/x
  3. Step 3: Cross multiply
    3,118.24x = 4,293.97 × 2,786.55
  4. Step 4: Simplify right side
    3,118.24x = 11,965,362.10
  5. Step 5: Solve for x
    x = 11,965,362.10/3,118.24
  6. Step 6: Final answer
    x = 3,837.22

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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.