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Finding the Fourth Proportional to 3,995.19, 5,992.11 and 1,072.85

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Solution

The fourth proportional to 3,995.19, 5,992.11 and 1,072.85 is: 1,609.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995.19 : 5,992.11 = 1,072.85 : x
  2. Step 2: Convert to fraction form
    3,995.19/5,992.11 = 1,072.85/x
  3. Step 3: Cross multiply
    3,995.19x = 5,992.11 × 1,072.85
  4. Step 4: Simplify right side
    3,995.19x = 6,428,605.25
  5. Step 5: Solve for x
    x = 6,428,605.25/3,995.19
  6. Step 6: Final answer
    x = 1,609.09

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1.5x scale

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.