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Finding the Fourth Proportional to 3,307, 4,960.70 and 998.52

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Solution

The fourth proportional to 3,307, 4,960.70 and 998.52 is: 1,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307 : 4,960.70 = 998.52 : x
  2. Step 2: Convert to fraction form
    3,307/4,960.70 = 998.52/x
  3. Step 3: Cross multiply
    3,307x = 4,960.70 × 998.52
  4. Step 4: Simplify right side
    3,307x = 4,953,358.16
  5. Step 5: Solve for x
    x = 4,953,358.16/3,307
  6. Step 6: Final answer
    x = 1,497.84

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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.