Home / 5,306.52-7,960.68-2,188.22

Finding the Fourth Proportional to 5,306.52, 7,960.68 and 2,188.22

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Solution

The fourth proportional to 5,306.52, 7,960.68 and 2,188.22 is: 3,282.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.52 : 7,960.68 = 2,188.22 : x
  2. Step 2: Convert to fraction form
    5,306.52/7,960.68 = 2,188.22/x
  3. Step 3: Cross multiply
    5,306.52x = 7,960.68 × 2,188.22
  4. Step 4: Simplify right side
    5,306.52x = 17,419,679.39
  5. Step 5: Solve for x
    x = 17,419,679.39/5,306.52
  6. Step 6: Final answer
    x = 3,282.69

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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.