Home / 3,219.66-4,443.39-2,694.78

Finding the Fourth Proportional to 3,219.66, 4,443.39 and 2,694.78

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Solution

The fourth proportional to 3,219.66, 4,443.39 and 2,694.78 is: 3,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219.66 : 4,443.39 = 2,694.78 : x
  2. Step 2: Convert to fraction form
    3,219.66/4,443.39 = 2,694.78/x
  3. Step 3: Cross multiply
    3,219.66x = 4,443.39 × 2,694.78
  4. Step 4: Simplify right side
    3,219.66x = 11,973,958.50
  5. Step 5: Solve for x
    x = 11,973,958.50/3,219.66
  6. Step 6: Final answer
    x = 3,719.01

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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.