Home / 4,518.78-6,229.45-3,771.55

Finding the Fourth Proportional to 4,518.78, 6,229.45 and 3,771.55

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Solution

The fourth proportional to 4,518.78, 6,229.45 and 3,771.55 is: 5,199.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.78 : 6,229.45 = 3,771.55 : x
  2. Step 2: Convert to fraction form
    4,518.78/6,229.45 = 3,771.55/x
  3. Step 3: Cross multiply
    4,518.78x = 6,229.45 × 3,771.55
  4. Step 4: Simplify right side
    4,518.78x = 23,494,682.15
  5. Step 5: Solve for x
    x = 23,494,682.15/4,518.78
  6. Step 6: Final answer
    x = 5,199.34

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Half scale
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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.