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Finding the Fourth Proportional to 3,234.79, 4,847.37 and 1,672.71

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Solution

The fourth proportional to 3,234.79, 4,847.37 and 1,672.71 is: 2,506.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,234.79 : 4,847.37 = 1,672.71 : x
  2. Step 2: Convert to fraction form
    3,234.79/4,847.37 = 1,672.71/x
  3. Step 3: Cross multiply
    3,234.79x = 4,847.37 × 1,672.71
  4. Step 4: Simplify right side
    3,234.79x = 8,108,230.72
  5. Step 5: Solve for x
    x = 8,108,230.72/3,234.79
  6. Step 6: Final answer
    x = 2,506.57

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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.