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Finding the Fourth Proportional to 7,672.91, 11,506.92 and 3,289.19

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Solution

The fourth proportional to 7,672.91, 11,506.92 and 3,289.19 is: 4,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.91 : 11,506.92 = 3,289.19 : x
  2. Step 2: Convert to fraction form
    7,672.91/11,506.92 = 3,289.19/x
  3. Step 3: Cross multiply
    7,672.91x = 11,506.92 × 3,289.19
  4. Step 4: Simplify right side
    7,672.91x = 37,848,388.66
  5. Step 5: Solve for x
    x = 37,848,388.66/7,672.91
  6. Step 6: Final answer
    x = 4,932.73

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1.5x scale

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.