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Finding the Fourth Proportional to 1,968.86, 2,951.15 and 995.03

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Solution

The fourth proportional to 1,968.86, 2,951.15 and 995.03 is: 1,491.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.86 : 2,951.15 = 995.03 : x
  2. Step 2: Convert to fraction form
    1,968.86/2,951.15 = 995.03/x
  3. Step 3: Cross multiply
    1,968.86x = 2,951.15 × 995.03
  4. Step 4: Simplify right side
    1,968.86x = 2,936,463.05
  5. Step 5: Solve for x
    x = 2,936,463.05/1,968.86
  6. Step 6: Final answer
    x = 1,491.46

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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.