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Finding the Fourth Proportional to 3,976.64, 5,965.07 and 1,054.94

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Solution

The fourth proportional to 3,976.64, 5,965.07 and 1,054.94 is: 1,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,976.64 : 5,965.07 = 1,054.94 : x
  2. Step 2: Convert to fraction form
    3,976.64/5,965.07 = 1,054.94/x
  3. Step 3: Cross multiply
    3,976.64x = 5,965.07 × 1,054.94
  4. Step 4: Simplify right side
    3,976.64x = 6,292,790.95
  5. Step 5: Solve for x
    x = 6,292,790.95/3,976.64
  6. Step 6: Final answer
    x = 1,582.44

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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.