Home / 5,419.75-8,131.04-2,299.90

Finding the Fourth Proportional to 5,419.75, 8,131.04 and 2,299.90

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Solution

The fourth proportional to 5,419.75, 8,131.04 and 2,299.90 is: 3,450.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.75 : 8,131.04 = 2,299.90 : x
  2. Step 2: Convert to fraction form
    5,419.75/8,131.04 = 2,299.90/x
  3. Step 3: Cross multiply
    5,419.75x = 8,131.04 × 2,299.90
  4. Step 4: Simplify right side
    5,419.75x = 18,700,526.74
  5. Step 5: Solve for x
    x = 18,700,526.74/5,419.75
  6. Step 6: Final answer
    x = 3,450.44

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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.