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Finding the Fourth Proportional to 1,996.72, 2,995.96 and 1,963.92

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Solution

The fourth proportional to 1,996.72, 2,995.96 and 1,963.92 is: 2,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.72 : 2,995.96 = 1,963.92 : x
  2. Step 2: Convert to fraction form
    1,996.72/2,995.96 = 1,963.92/x
  3. Step 3: Cross multiply
    1,996.72x = 2,995.96 × 1,963.92
  4. Step 4: Simplify right side
    1,996.72x = 5,883,825.76
  5. Step 5: Solve for x
    x = 5,883,825.76/1,996.72
  6. Step 6: Final answer
    x = 2,946.75

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1.5x scale

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.