Home / 1,850.66-2,768.96-1,331.84

Finding the Fourth Proportional to 1,850.66, 2,768.96 and 1,331.84

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Solution

The fourth proportional to 1,850.66, 2,768.96 and 1,331.84 is: 1,992.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.66 : 2,768.96 = 1,331.84 : x
  2. Step 2: Convert to fraction form
    1,850.66/2,768.96 = 1,331.84/x
  3. Step 3: Cross multiply
    1,850.66x = 2,768.96 × 1,331.84
  4. Step 4: Simplify right side
    1,850.66x = 3,687,811.69
  5. Step 5: Solve for x
    x = 3,687,811.69/1,850.66
  6. Step 6: Final answer
    x = 1,992.70

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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.