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Finding the Fourth Proportional to 7,234.08, 9,982.96 and 3,922.08

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Solution

The fourth proportional to 7,234.08, 9,982.96 and 3,922.08 is: 5,412.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,234.08 : 9,982.96 = 3,922.08 : x
  2. Step 2: Convert to fraction form
    7,234.08/9,982.96 = 3,922.08/x
  3. Step 3: Cross multiply
    7,234.08x = 9,982.96 × 3,922.08
  4. Step 4: Simplify right side
    7,234.08x = 39,153,967.76
  5. Step 5: Solve for x
    x = 39,153,967.76/7,234.08
  6. Step 6: Final answer
    x = 5,412.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.