Home / 3,306.93-4,961.39-1,992.12

Finding the Fourth Proportional to 3,306.93, 4,961.39 and 1,992.12

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Solution

The fourth proportional to 3,306.93, 4,961.39 and 1,992.12 is: 2,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,306.93 : 4,961.39 = 1,992.12 : x
  2. Step 2: Convert to fraction form
    3,306.93/4,961.39 = 1,992.12/x
  3. Step 3: Cross multiply
    3,306.93x = 4,961.39 × 1,992.12
  4. Step 4: Simplify right side
    3,306.93x = 9,883,674.29
  5. Step 5: Solve for x
    x = 9,883,674.29/3,306.93
  6. Step 6: Final answer
    x = 2,988.78

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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.