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Finding the Fourth Proportional to 4,789.92, 6,609.84 and 2,800.68

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Solution

The fourth proportional to 4,789.92, 6,609.84 and 2,800.68 is: 3,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.92 : 6,609.84 = 2,800.68 : x
  2. Step 2: Convert to fraction form
    4,789.92/6,609.84 = 2,800.68/x
  3. Step 3: Cross multiply
    4,789.92x = 6,609.84 × 2,800.68
  4. Step 4: Simplify right side
    4,789.92x = 18,512,046.69
  5. Step 5: Solve for x
    x = 18,512,046.69/4,789.92
  6. Step 6: Final answer
    x = 3,864.79

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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.