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Finding the Fourth Proportional to 2,509.91, 3,764.89 and 1,193.80

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Solution

The fourth proportional to 2,509.91, 3,764.89 and 1,193.80 is: 1,790.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.91 : 3,764.89 = 1,193.80 : x
  2. Step 2: Convert to fraction form
    2,509.91/3,764.89 = 1,193.80/x
  3. Step 3: Cross multiply
    2,509.91x = 3,764.89 × 1,193.80
  4. Step 4: Simplify right side
    2,509.91x = 4,494,513.29
  5. Step 5: Solve for x
    x = 4,494,513.29/2,509.91
  6. Step 6: Final answer
    x = 1,790.71

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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.