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Finding the Fourth Proportional to 4,788.68, 7,183.02 and 3,910.28

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Solution

The fourth proportional to 4,788.68, 7,183.02 and 3,910.28 is: 5,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,788.68 : 7,183.02 = 3,910.28 : x
  2. Step 2: Convert to fraction form
    4,788.68/7,183.02 = 3,910.28/x
  3. Step 3: Cross multiply
    4,788.68x = 7,183.02 × 3,910.28
  4. Step 4: Simplify right side
    4,788.68x = 28,087,619.45
  5. Step 5: Solve for x
    x = 28,087,619.45/4,788.68
  6. Step 6: Final answer
    x = 5,865.42

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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.