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Finding the Fourth Proportional to 1,976.02, 2,963.73 and 677.19

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Solution

The fourth proportional to 1,976.02, 2,963.73 and 677.19 is: 1,015.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.02 : 2,963.73 = 677.19 : x
  2. Step 2: Convert to fraction form
    1,976.02/2,963.73 = 677.19/x
  3. Step 3: Cross multiply
    1,976.02x = 2,963.73 × 677.19
  4. Step 4: Simplify right side
    1,976.02x = 2,007,008.32
  5. Step 5: Solve for x
    x = 2,007,008.32/1,976.02
  6. Step 6: Final answer
    x = 1,015.68

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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.