Home / 3,414.55-5,117.68-1,930.09

Finding the Fourth Proportional to 3,414.55, 5,117.68 and 1,930.09

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Solution

The fourth proportional to 3,414.55, 5,117.68 and 1,930.09 is: 2,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.55 : 5,117.68 = 1,930.09 : x
  2. Step 2: Convert to fraction form
    3,414.55/5,117.68 = 1,930.09/x
  3. Step 3: Cross multiply
    3,414.55x = 5,117.68 × 1,930.09
  4. Step 4: Simplify right side
    3,414.55x = 9,877,582.99
  5. Step 5: Solve for x
    x = 9,877,582.99/3,414.55
  6. Step 6: Final answer
    x = 2,892.79

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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.