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Finding the Fourth Proportional to 3,928.70, 5,889.11 and 2,468.88

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Solution

The fourth proportional to 3,928.70, 5,889.11 and 2,468.88 is: 3,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.70 : 5,889.11 = 2,468.88 : x
  2. Step 2: Convert to fraction form
    3,928.70/5,889.11 = 2,468.88/x
  3. Step 3: Cross multiply
    3,928.70x = 5,889.11 × 2,468.88
  4. Step 4: Simplify right side
    3,928.70x = 14,539,493.55
  5. Step 5: Solve for x
    x = 14,539,493.55/3,928.70
  6. Step 6: Final answer
    x = 3,700.84

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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.