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Finding the Fourth Proportional to 4,118, 6,177 and 1,520.94

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Solution

The fourth proportional to 4,118, 6,177 and 1,520.94 is: 2,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,118 : 6,177 = 1,520.94 : x
  2. Step 2: Convert to fraction form
    4,118/6,177 = 1,520.94/x
  3. Step 3: Cross multiply
    4,118x = 6,177 × 1,520.94
  4. Step 4: Simplify right side
    4,118x = 9,394,846.38
  5. Step 5: Solve for x
    x = 9,394,846.38/4,118
  6. Step 6: Final answer
    x = 2,281.41

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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.