Home / 2,226.06-3,338.73-839.28

Finding the Fourth Proportional to 2,226.06, 3,338.73 and 839.28

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Solution

The fourth proportional to 2,226.06, 3,338.73 and 839.28 is: 1,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.06 : 3,338.73 = 839.28 : x
  2. Step 2: Convert to fraction form
    2,226.06/3,338.73 = 839.28/x
  3. Step 3: Cross multiply
    2,226.06x = 3,338.73 × 839.28
  4. Step 4: Simplify right side
    2,226.06x = 2,802,129.31
  5. Step 5: Solve for x
    x = 2,802,129.31/2,226.06
  6. Step 6: Final answer
    x = 1,258.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.