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Finding the Fourth Proportional to 3,307, 4,960.68 and 998.68

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Solution

The fourth proportional to 3,307, 4,960.68 and 998.68 is: 1,498.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307 : 4,960.68 = 998.68 : x
  2. Step 2: Convert to fraction form
    3,307/4,960.68 = 998.68/x
  3. Step 3: Cross multiply
    3,307x = 4,960.68 × 998.68
  4. Step 4: Simplify right side
    3,307x = 4,954,131.90
  5. Step 5: Solve for x
    x = 4,954,131.90/3,307
  6. Step 6: Final answer
    x = 1,498.07

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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.