Home / 3,778.23-5,213.85-2,099.55

Finding the Fourth Proportional to 3,778.23, 5,213.85 and 2,099.55

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Solution

The fourth proportional to 3,778.23, 5,213.85 and 2,099.55 is: 2,897.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.23 : 5,213.85 = 2,099.55 : x
  2. Step 2: Convert to fraction form
    3,778.23/5,213.85 = 2,099.55/x
  3. Step 3: Cross multiply
    3,778.23x = 5,213.85 × 2,099.55
  4. Step 4: Simplify right side
    3,778.23x = 10,946,738.77
  5. Step 5: Solve for x
    x = 10,946,738.77/3,778.23
  6. Step 6: Final answer
    x = 2,897.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.