Home / 3,949.21-5,923.82-2,219.05

Finding the Fourth Proportional to 3,949.21, 5,923.82 and 2,219.05

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Solution

The fourth proportional to 3,949.21, 5,923.82 and 2,219.05 is: 3,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.21 : 5,923.82 = 2,219.05 : x
  2. Step 2: Convert to fraction form
    3,949.21/5,923.82 = 2,219.05/x
  3. Step 3: Cross multiply
    3,949.21x = 5,923.82 × 2,219.05
  4. Step 4: Simplify right side
    3,949.21x = 13,145,252.77
  5. Step 5: Solve for x
    x = 13,145,252.77/3,949.21
  6. Step 6: Final answer
    x = 3,328.58

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Similar ratio
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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.