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Finding the Fourth Proportional to 5,306.80, 7,945.60 and 2,704.56

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Solution

The fourth proportional to 5,306.80, 7,945.60 and 2,704.56 is: 4,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.80 : 7,945.60 = 2,704.56 : x
  2. Step 2: Convert to fraction form
    5,306.80/7,945.60 = 2,704.56/x
  3. Step 3: Cross multiply
    5,306.80x = 7,945.60 × 2,704.56
  4. Step 4: Simplify right side
    5,306.80x = 21,489,351.94
  5. Step 5: Solve for x
    x = 21,489,351.94/5,306.80
  6. Step 6: Final answer
    x = 4,049.40

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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.