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Finding the Fourth Proportional to 2,997.27, 4,136.27 and 1,721.35

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Solution

The fourth proportional to 2,997.27, 4,136.27 and 1,721.35 is: 2,375.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.27 : 4,136.27 = 1,721.35 : x
  2. Step 2: Convert to fraction form
    2,997.27/4,136.27 = 1,721.35/x
  3. Step 3: Cross multiply
    2,997.27x = 4,136.27 × 1,721.35
  4. Step 4: Simplify right side
    2,997.27x = 7,119,968.36
  5. Step 5: Solve for x
    x = 7,119,968.36/2,997.27
  6. Step 6: Final answer
    x = 2,375.48

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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.