Home / 3,469.18-5,199.40-2,219.30

Finding the Fourth Proportional to 3,469.18, 5,199.40 and 2,219.30

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Solution

The fourth proportional to 3,469.18, 5,199.40 and 2,219.30 is: 3,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.18 : 5,199.40 = 2,219.30 : x
  2. Step 2: Convert to fraction form
    3,469.18/5,199.40 = 2,219.30/x
  3. Step 3: Cross multiply
    3,469.18x = 5,199.40 × 2,219.30
  4. Step 4: Simplify right side
    3,469.18x = 11,539,028.42
  5. Step 5: Solve for x
    x = 11,539,028.42/3,469.18
  6. Step 6: Final answer
    x = 3,326.15

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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.