Home / 5,376.60-8,067.81-2,089.80

Finding the Fourth Proportional to 5,376.60, 8,067.81 and 2,089.80

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Solution

The fourth proportional to 5,376.60, 8,067.81 and 2,089.80 is: 3,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.60 : 8,067.81 = 2,089.80 : x
  2. Step 2: Convert to fraction form
    5,376.60/8,067.81 = 2,089.80/x
  3. Step 3: Cross multiply
    5,376.60x = 8,067.81 × 2,089.80
  4. Step 4: Simplify right side
    5,376.60x = 16,860,109.34
  5. Step 5: Solve for x
    x = 16,860,109.34/5,376.60
  6. Step 6: Final answer
    x = 3,135.83

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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.