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Finding the Fourth Proportional to 7,154.70, 10,734.29 and 3,209.27

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Solution

The fourth proportional to 7,154.70, 10,734.29 and 3,209.27 is: 4,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.70 : 10,734.29 = 3,209.27 : x
  2. Step 2: Convert to fraction form
    7,154.70/10,734.29 = 3,209.27/x
  3. Step 3: Cross multiply
    7,154.70x = 10,734.29 × 3,209.27
  4. Step 4: Simplify right side
    7,154.70x = 34,449,165.15
  5. Step 5: Solve for x
    x = 34,449,165.15/7,154.70
  6. Step 6: Final answer
    x = 4,814.90

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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.