Home / 3,191.96-4,785.30-2,219.96

Finding the Fourth Proportional to 3,191.96, 4,785.30 and 2,219.96

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Solution

The fourth proportional to 3,191.96, 4,785.30 and 2,219.96 is: 3,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.96 : 4,785.30 = 2,219.96 : x
  2. Step 2: Convert to fraction form
    3,191.96/4,785.30 = 2,219.96/x
  3. Step 3: Cross multiply
    3,191.96x = 4,785.30 × 2,219.96
  4. Step 4: Simplify right side
    3,191.96x = 10,623,174.59
  5. Step 5: Solve for x
    x = 10,623,174.59/3,191.96
  6. Step 6: Final answer
    x = 3,328.10

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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.