Home / 5,419.96-8,131.07-3,081.04

Finding the Fourth Proportional to 5,419.96, 8,131.07 and 3,081.04

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Solution

The fourth proportional to 5,419.96, 8,131.07 and 3,081.04 is: 4,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.96 : 8,131.07 = 3,081.04 : x
  2. Step 2: Convert to fraction form
    5,419.96/8,131.07 = 3,081.04/x
  3. Step 3: Cross multiply
    5,419.96x = 8,131.07 × 3,081.04
  4. Step 4: Simplify right side
    5,419.96x = 25,052,095.85
  5. Step 5: Solve for x
    x = 25,052,095.85/5,419.96
  6. Step 6: Final answer
    x = 4,622.20

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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.