Home / 5,396.85-8,080.21-2,758.68

Finding the Fourth Proportional to 5,396.85, 8,080.21 and 2,758.68

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Solution

The fourth proportional to 5,396.85, 8,080.21 and 2,758.68 is: 4,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.85 : 8,080.21 = 2,758.68 : x
  2. Step 2: Convert to fraction form
    5,396.85/8,080.21 = 2,758.68/x
  3. Step 3: Cross multiply
    5,396.85x = 8,080.21 × 2,758.68
  4. Step 4: Simplify right side
    5,396.85x = 22,290,713.72
  5. Step 5: Solve for x
    x = 22,290,713.72/5,396.85
  6. Step 6: Final answer
    x = 4,130.32

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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.