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Finding the Fourth Proportional to 3,296.68, 4,942.20 and 1,347.64

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Solution

The fourth proportional to 3,296.68, 4,942.20 and 1,347.64 is: 2,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,296.68 : 4,942.20 = 1,347.64 : x
  2. Step 2: Convert to fraction form
    3,296.68/4,942.20 = 1,347.64/x
  3. Step 3: Cross multiply
    3,296.68x = 4,942.20 × 1,347.64
  4. Step 4: Simplify right side
    3,296.68x = 6,660,306.41
  5. Step 5: Solve for x
    x = 6,660,306.41/3,296.68
  6. Step 6: Final answer
    x = 2,020.31

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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.