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Finding the Fourth Proportional to 3,741.76, 5,163.80 and 2,063.20

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Solution

The fourth proportional to 3,741.76, 5,163.80 and 2,063.20 is: 2,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.76 : 5,163.80 = 2,063.20 : x
  2. Step 2: Convert to fraction form
    3,741.76/5,163.80 = 2,063.20/x
  3. Step 3: Cross multiply
    3,741.76x = 5,163.80 × 2,063.20
  4. Step 4: Simplify right side
    3,741.76x = 10,653,952.16
  5. Step 5: Solve for x
    x = 10,653,952.16/3,741.76
  6. Step 6: Final answer
    x = 2,847.31

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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.