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Finding the Fourth Proportional to 2,447.69, 3,668.49 and 1,787.94

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Solution

The fourth proportional to 2,447.69, 3,668.49 and 1,787.94 is: 2,679.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.69 : 3,668.49 = 1,787.94 : x
  2. Step 2: Convert to fraction form
    2,447.69/3,668.49 = 1,787.94/x
  3. Step 3: Cross multiply
    2,447.69x = 3,668.49 × 1,787.94
  4. Step 4: Simplify right side
    2,447.69x = 6,559,040.01
  5. Step 5: Solve for x
    x = 6,559,040.01/2,447.69
  6. Step 6: Final answer
    x = 2,679.69

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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.