Home / 3,218.15-4,439.62-1,958.73

Finding the Fourth Proportional to 3,218.15, 4,439.62 and 1,958.73

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Solution

The fourth proportional to 3,218.15, 4,439.62 and 1,958.73 is: 2,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.15 : 4,439.62 = 1,958.73 : x
  2. Step 2: Convert to fraction form
    3,218.15/4,439.62 = 1,958.73/x
  3. Step 3: Cross multiply
    3,218.15x = 4,439.62 × 1,958.73
  4. Step 4: Simplify right side
    3,218.15x = 8,696,016.88
  5. Step 5: Solve for x
    x = 8,696,016.88/3,218.15
  6. Step 6: Final answer
    x = 2,702.18

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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.