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Finding the Fourth Proportional to 3,668.91, 5,503.31 and 1,719.73

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Solution

The fourth proportional to 3,668.91, 5,503.31 and 1,719.73 is: 2,579.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.91 : 5,503.31 = 1,719.73 : x
  2. Step 2: Convert to fraction form
    3,668.91/5,503.31 = 1,719.73/x
  3. Step 3: Cross multiply
    3,668.91x = 5,503.31 × 1,719.73
  4. Step 4: Simplify right side
    3,668.91x = 9,464,207.31
  5. Step 5: Solve for x
    x = 9,464,207.31/3,668.91
  6. Step 6: Final answer
    x = 2,579.57

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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.