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Finding the Fourth Proportional to 3,791.96, 5,234.97 and 2,619.34

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Solution

The fourth proportional to 3,791.96, 5,234.97 and 2,619.34 is: 3,616.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.96 : 5,234.97 = 2,619.34 : x
  2. Step 2: Convert to fraction form
    3,791.96/5,234.97 = 2,619.34/x
  3. Step 3: Cross multiply
    3,791.96x = 5,234.97 × 2,619.34
  4. Step 4: Simplify right side
    3,791.96x = 13,712,166.32
  5. Step 5: Solve for x
    x = 13,712,166.32/3,791.96
  6. Step 6: Final answer
    x = 3,616.12

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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.