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Finding the Fourth Proportional to 1,996.48, 2,993.76 and 609.46

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Solution

The fourth proportional to 1,996.48, 2,993.76 and 609.46 is: 913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.48 : 2,993.76 = 609.46 : x
  2. Step 2: Convert to fraction form
    1,996.48/2,993.76 = 609.46/x
  3. Step 3: Cross multiply
    1,996.48x = 2,993.76 × 609.46
  4. Step 4: Simplify right side
    1,996.48x = 1,824,576.97
  5. Step 5: Solve for x
    x = 1,824,576.97/1,996.48
  6. Step 6: Final answer
    x = 913.90

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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.