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Finding the Fourth Proportional to 3,651.97, 5,042.03 and 2,811.09

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Solution

The fourth proportional to 3,651.97, 5,042.03 and 2,811.09 is: 3,881.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.97 : 5,042.03 = 2,811.09 : x
  2. Step 2: Convert to fraction form
    3,651.97/5,042.03 = 2,811.09/x
  3. Step 3: Cross multiply
    3,651.97x = 5,042.03 × 2,811.09
  4. Step 4: Simplify right side
    3,651.97x = 14,173,586.06
  5. Step 5: Solve for x
    x = 14,173,586.06/3,651.97
  6. Step 6: Final answer
    x = 3,881.08

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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.