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Finding the Fourth Proportional to 3,474.78, 4,790.39 and 2,723.91

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Solution

The fourth proportional to 3,474.78, 4,790.39 and 2,723.91 is: 3,755.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.78 : 4,790.39 = 2,723.91 : x
  2. Step 2: Convert to fraction form
    3,474.78/4,790.39 = 2,723.91/x
  3. Step 3: Cross multiply
    3,474.78x = 4,790.39 × 2,723.91
  4. Step 4: Simplify right side
    3,474.78x = 13,048,577.61
  5. Step 5: Solve for x
    x = 13,048,577.61/3,474.78
  6. Step 6: Final answer
    x = 3,755.22

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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.