Home / 5,416.22-8,120.99-2,127.83

Finding the Fourth Proportional to 5,416.22, 8,120.99 and 2,127.83

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Solution

The fourth proportional to 5,416.22, 8,120.99 and 2,127.83 is: 3,190.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.22 : 8,120.99 = 2,127.83 : x
  2. Step 2: Convert to fraction form
    5,416.22/8,120.99 = 2,127.83/x
  3. Step 3: Cross multiply
    5,416.22x = 8,120.99 × 2,127.83
  4. Step 4: Simplify right side
    5,416.22x = 17,280,050.87
  5. Step 5: Solve for x
    x = 17,280,050.87/5,416.22
  6. Step 6: Final answer
    x = 3,190.42

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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.