Home / 5,855.35-8,778.91-2,157.09

Finding the Fourth Proportional to 5,855.35, 8,778.91 and 2,157.09

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Solution

The fourth proportional to 5,855.35, 8,778.91 and 2,157.09 is: 3,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.35 : 8,778.91 = 2,157.09 : x
  2. Step 2: Convert to fraction form
    5,855.35/8,778.91 = 2,157.09/x
  3. Step 3: Cross multiply
    5,855.35x = 8,778.91 × 2,157.09
  4. Step 4: Simplify right side
    5,855.35x = 18,936,898.97
  5. Step 5: Solve for x
    x = 18,936,898.97/5,855.35
  6. Step 6: Final answer
    x = 3,234.12

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1.5x scale

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.