Home / 1,874.96-2,811.09-1,172.42

Finding the Fourth Proportional to 1,874.96, 2,811.09 and 1,172.42

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Solution

The fourth proportional to 1,874.96, 2,811.09 and 1,172.42 is: 1,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.96 : 2,811.09 = 1,172.42 : x
  2. Step 2: Convert to fraction form
    1,874.96/2,811.09 = 1,172.42/x
  3. Step 3: Cross multiply
    1,874.96x = 2,811.09 × 1,172.42
  4. Step 4: Simplify right side
    1,874.96x = 3,295,778.14
  5. Step 5: Solve for x
    x = 3,295,778.14/1,874.96
  6. Step 6: Final answer
    x = 1,757.79

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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.