Home / 5,396.80-8,097.72-2,109.04

Finding the Fourth Proportional to 5,396.80, 8,097.72 and 2,109.04

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Solution

The fourth proportional to 5,396.80, 8,097.72 and 2,109.04 is: 3,164.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,396.80 : 8,097.72 = 2,109.04 : x
  2. Step 2: Convert to fraction form
    5,396.80/8,097.72 = 2,109.04/x
  3. Step 3: Cross multiply
    5,396.80x = 8,097.72 × 2,109.04
  4. Step 4: Simplify right side
    5,396.80x = 17,078,415.39
  5. Step 5: Solve for x
    x = 17,078,415.39/5,396.80
  6. Step 6: Final answer
    x = 3,164.54

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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.