Home / 2,218.92-3,326.14-1,439.42

Finding the Fourth Proportional to 2,218.92, 3,326.14 and 1,439.42

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Solution

The fourth proportional to 2,218.92, 3,326.14 and 1,439.42 is: 2,157.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.92 : 3,326.14 = 1,439.42 : x
  2. Step 2: Convert to fraction form
    2,218.92/3,326.14 = 1,439.42/x
  3. Step 3: Cross multiply
    2,218.92x = 3,326.14 × 1,439.42
  4. Step 4: Simplify right side
    2,218.92x = 4,787,712.44
  5. Step 5: Solve for x
    x = 4,787,712.44/2,218.92
  6. Step 6: Final answer
    x = 2,157.68

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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.