Home / 5,396.80-8,102.40-3,452.80

Finding the Fourth Proportional to 5,396.80, 8,102.40 and 3,452.80

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Solution

The fourth proportional to 5,396.80, 8,102.40 and 3,452.80 is: 5,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.80 : 8,102.40 = 3,452.80 : x
  2. Step 2: Convert to fraction form
    5,396.80/8,102.40 = 3,452.80/x
  3. Step 3: Cross multiply
    5,396.80x = 8,102.40 × 3,452.80
  4. Step 4: Simplify right side
    5,396.80x = 27,975,966.72
  5. Step 5: Solve for x
    x = 27,975,966.72/5,396.80
  6. Step 6: Final answer
    x = 5,183.81

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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.