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Finding the Fourth Proportional to 3,540.92, 4,889.97 and 2,917.62

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Solution

The fourth proportional to 3,540.92, 4,889.97 and 2,917.62 is: 4,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.92 : 4,889.97 = 2,917.62 : x
  2. Step 2: Convert to fraction form
    3,540.92/4,889.97 = 2,917.62/x
  3. Step 3: Cross multiply
    3,540.92x = 4,889.97 × 2,917.62
  4. Step 4: Simplify right side
    3,540.92x = 14,267,074.27
  5. Step 5: Solve for x
    x = 14,267,074.27/3,540.92
  6. Step 6: Final answer
    x = 4,029.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.