Home / 2,906.76-4,331.27-2,765.55

Finding the Fourth Proportional to 2,906.76, 4,331.27 and 2,765.55

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Solution

The fourth proportional to 2,906.76, 4,331.27 and 2,765.55 is: 4,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.76 : 4,331.27 = 2,765.55 : x
  2. Step 2: Convert to fraction form
    2,906.76/4,331.27 = 2,765.55/x
  3. Step 3: Cross multiply
    2,906.76x = 4,331.27 × 2,765.55
  4. Step 4: Simplify right side
    2,906.76x = 11,978,366.90
  5. Step 5: Solve for x
    x = 11,978,366.90/2,906.76
  6. Step 6: Final answer
    x = 4,120.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.