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Finding the Fourth Proportional to 7,233.80, 9,982.26 and 4,089.80

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Solution

The fourth proportional to 7,233.80, 9,982.26 and 4,089.80 is: 5,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,233.80 : 9,982.26 = 4,089.80 : x
  2. Step 2: Convert to fraction form
    7,233.80/9,982.26 = 4,089.80/x
  3. Step 3: Cross multiply
    7,233.80x = 9,982.26 × 4,089.80
  4. Step 4: Simplify right side
    7,233.80x = 40,825,446.95
  5. Step 5: Solve for x
    x = 40,825,446.95/7,233.80
  6. Step 6: Final answer
    x = 5,643.71

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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.