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Finding the Fourth Proportional to 3,441.87, 5,163.62 and 976.64

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Solution

The fourth proportional to 3,441.87, 5,163.62 and 976.64 is: 1,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,441.87 : 5,163.62 = 976.64 : x
  2. Step 2: Convert to fraction form
    3,441.87/5,163.62 = 976.64/x
  3. Step 3: Cross multiply
    3,441.87x = 5,163.62 × 976.64
  4. Step 4: Simplify right side
    3,441.87x = 5,042,967.14
  5. Step 5: Solve for x
    x = 5,042,967.14/3,441.87
  6. Step 6: Final answer
    x = 1,465.18

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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.