Home / 2,222.45-3,066.56-1,338.32

Finding the Fourth Proportional to 2,222.45, 3,066.56 and 1,338.32

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Solution

The fourth proportional to 2,222.45, 3,066.56 and 1,338.32 is: 1,846.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.45 : 3,066.56 = 1,338.32 : x
  2. Step 2: Convert to fraction form
    2,222.45/3,066.56 = 1,338.32/x
  3. Step 3: Cross multiply
    2,222.45x = 3,066.56 × 1,338.32
  4. Step 4: Simplify right side
    2,222.45x = 4,104,034.85
  5. Step 5: Solve for x
    x = 4,104,034.85/2,222.45
  6. Step 6: Final answer
    x = 1,846.62

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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.