Home / 3,948.21-5,922.32-2,218.05

Finding the Fourth Proportional to 3,948.21, 5,922.32 and 2,218.05

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Solution

The fourth proportional to 3,948.21, 5,922.32 and 2,218.05 is: 3,327.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.21 : 5,922.32 = 2,218.05 : x
  2. Step 2: Convert to fraction form
    3,948.21/5,922.32 = 2,218.05/x
  3. Step 3: Cross multiply
    3,948.21x = 5,922.32 × 2,218.05
  4. Step 4: Simplify right side
    3,948.21x = 13,135,990.79
  5. Step 5: Solve for x
    x = 13,135,990.79/3,948.21
  6. Step 6: Final answer
    x = 3,327.08

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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.