Home / 3,811.91-5,718.05-1,181.24

Finding the Fourth Proportional to 3,811.91, 5,718.05 and 1,181.24

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Solution

The fourth proportional to 3,811.91, 5,718.05 and 1,181.24 is: 1,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.91 : 5,718.05 = 1,181.24 : x
  2. Step 2: Convert to fraction form
    3,811.91/5,718.05 = 1,181.24/x
  3. Step 3: Cross multiply
    3,811.91x = 5,718.05 × 1,181.24
  4. Step 4: Simplify right side
    3,811.91x = 6,754,354.89
  5. Step 5: Solve for x
    x = 6,754,354.89/3,811.91
  6. Step 6: Final answer
    x = 1,771.91

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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.