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Finding the Fourth Proportional to 4,761.28, 7,138.22 and 1,799.68

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Solution

The fourth proportional to 4,761.28, 7,138.22 and 1,799.68 is: 2,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.28 : 7,138.22 = 1,799.68 : x
  2. Step 2: Convert to fraction form
    4,761.28/7,138.22 = 1,799.68/x
  3. Step 3: Cross multiply
    4,761.28x = 7,138.22 × 1,799.68
  4. Step 4: Simplify right side
    4,761.28x = 12,846,476.08
  5. Step 5: Solve for x
    x = 12,846,476.08/4,761.28
  6. Step 6: Final answer
    x = 2,698.11

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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.