Home / 5,213.82-7,817.90-2,575.55

Finding the Fourth Proportional to 5,213.82, 7,817.90 and 2,575.55

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Solution

The fourth proportional to 5,213.82, 7,817.90 and 2,575.55 is: 3,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.82 : 7,817.90 = 2,575.55 : x
  2. Step 2: Convert to fraction form
    5,213.82/7,817.90 = 2,575.55/x
  3. Step 3: Cross multiply
    5,213.82x = 7,817.90 × 2,575.55
  4. Step 4: Simplify right side
    5,213.82x = 20,135,392.35
  5. Step 5: Solve for x
    x = 20,135,392.35/5,213.82
  6. Step 6: Final answer
    x = 3,861.93

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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.