Home / 3,402.25-5,105.08-1,211.15

Finding the Fourth Proportional to 3,402.25, 5,105.08 and 1,211.15

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Solution

The fourth proportional to 3,402.25, 5,105.08 and 1,211.15 is: 1,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,402.25 : 5,105.08 = 1,211.15 : x
  2. Step 2: Convert to fraction form
    3,402.25/5,105.08 = 1,211.15/x
  3. Step 3: Cross multiply
    3,402.25x = 5,105.08 × 1,211.15
  4. Step 4: Simplify right side
    3,402.25x = 6,183,025.11
  5. Step 5: Solve for x
    x = 6,183,025.11/3,402.25
  6. Step 6: Final answer
    x = 1,817.33

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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.