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Finding the Fourth Proportional to 2,997.50, 4,496.97 and 945.50

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Solution

The fourth proportional to 2,997.50, 4,496.97 and 945.50 is: 1,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.50 : 4,496.97 = 945.50 : x
  2. Step 2: Convert to fraction form
    2,997.50/4,496.97 = 945.50/x
  3. Step 3: Cross multiply
    2,997.50x = 4,496.97 × 945.50
  4. Step 4: Simplify right side
    2,997.50x = 4,251,885.14
  5. Step 5: Solve for x
    x = 4,251,885.14/2,997.50
  6. Step 6: Final answer
    x = 1,418.48

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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.