Home / 3,867.68-5,338.66-2,274.24

Finding the Fourth Proportional to 3,867.68, 5,338.66 and 2,274.24

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Solution

The fourth proportional to 3,867.68, 5,338.66 and 2,274.24 is: 3,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.68 : 5,338.66 = 2,274.24 : x
  2. Step 2: Convert to fraction form
    3,867.68/5,338.66 = 2,274.24/x
  3. Step 3: Cross multiply
    3,867.68x = 5,338.66 × 2,274.24
  4. Step 4: Simplify right side
    3,867.68x = 12,141,388.43
  5. Step 5: Solve for x
    x = 12,141,388.43/3,867.68
  6. Step 6: Final answer
    x = 3,139.20

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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.