Home / 4,190.73-6,276.96-1,992.78

Finding the Fourth Proportional to 4,190.73, 6,276.96 and 1,992.78

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Solution

The fourth proportional to 4,190.73, 6,276.96 and 1,992.78 is: 2,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.73 : 6,276.96 = 1,992.78 : x
  2. Step 2: Convert to fraction form
    4,190.73/6,276.96 = 1,992.78/x
  3. Step 3: Cross multiply
    4,190.73x = 6,276.96 × 1,992.78
  4. Step 4: Simplify right side
    4,190.73x = 12,508,600.35
  5. Step 5: Solve for x
    x = 12,508,600.35/4,190.73
  6. Step 6: Final answer
    x = 2,984.83

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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.