Home / 2,227.55-3,338.62-839.48

Finding the Fourth Proportional to 2,227.55, 3,338.62 and 839.48

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Solution

The fourth proportional to 2,227.55, 3,338.62 and 839.48 is: 1,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,227.55 : 3,338.62 = 839.48 : x
  2. Step 2: Convert to fraction form
    2,227.55/3,338.62 = 839.48/x
  3. Step 3: Cross multiply
    2,227.55x = 3,338.62 × 839.48
  4. Step 4: Simplify right side
    2,227.55x = 2,802,685.93
  5. Step 5: Solve for x
    x = 2,802,685.93/2,227.55
  6. Step 6: Final answer
    x = 1,258.19

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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.