Home / 2,222.56-3,066.78-1,338.22

Finding the Fourth Proportional to 2,222.56, 3,066.78 and 1,338.22

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Solution

The fourth proportional to 2,222.56, 3,066.78 and 1,338.22 is: 1,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.56 : 3,066.78 = 1,338.22 : x
  2. Step 2: Convert to fraction form
    2,222.56/3,066.78 = 1,338.22/x
  3. Step 3: Cross multiply
    2,222.56x = 3,066.78 × 1,338.22
  4. Step 4: Simplify right side
    2,222.56x = 4,104,026.33
  5. Step 5: Solve for x
    x = 4,104,026.33/2,222.56
  6. Step 6: Final answer
    x = 1,846.53

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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.