Home / 4,906.74-6,771.96-3,138.78

Finding the Fourth Proportional to 4,906.74, 6,771.96 and 3,138.78

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Solution

The fourth proportional to 4,906.74, 6,771.96 and 3,138.78 is: 4,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,906.74 : 6,771.96 = 3,138.78 : x
  2. Step 2: Convert to fraction form
    4,906.74/6,771.96 = 3,138.78/x
  3. Step 3: Cross multiply
    4,906.74x = 6,771.96 × 3,138.78
  4. Step 4: Simplify right side
    4,906.74x = 21,255,692.61
  5. Step 5: Solve for x
    x = 21,255,692.61/4,906.74
  6. Step 6: Final answer
    x = 4,331.94

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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.