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Finding the Fourth Proportional to 3,992.91, 5,504.84 and 2,796.29

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Solution

The fourth proportional to 3,992.91, 5,504.84 and 2,796.29 is: 3,855.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.91 : 5,504.84 = 2,796.29 : x
  2. Step 2: Convert to fraction form
    3,992.91/5,504.84 = 2,796.29/x
  3. Step 3: Cross multiply
    3,992.91x = 5,504.84 × 2,796.29
  4. Step 4: Simplify right side
    3,992.91x = 15,393,101.52
  5. Step 5: Solve for x
    x = 15,393,101.52/3,992.91
  6. Step 6: Final answer
    x = 3,855.11

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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.