Home / 1,817.68-2,727.88-1,331.98

Finding the Fourth Proportional to 1,817.68, 2,727.88 and 1,331.98

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Solution

The fourth proportional to 1,817.68, 2,727.88 and 1,331.98 is: 1,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.68 : 2,727.88 = 1,331.98 : x
  2. Step 2: Convert to fraction form
    1,817.68/2,727.88 = 1,331.98/x
  3. Step 3: Cross multiply
    1,817.68x = 2,727.88 × 1,331.98
  4. Step 4: Simplify right side
    1,817.68x = 3,633,481.60
  5. Step 5: Solve for x
    x = 3,633,481.60/1,817.68
  6. Step 6: Final answer
    x = 1,998.97

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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.