Home / 4,993.28-7,489.82-2,219.20

Finding the Fourth Proportional to 4,993.28, 7,489.82 and 2,219.20

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Solution

The fourth proportional to 4,993.28, 7,489.82 and 2,219.20 is: 3,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.28 : 7,489.82 = 2,219.20 : x
  2. Step 2: Convert to fraction form
    4,993.28/7,489.82 = 2,219.20/x
  3. Step 3: Cross multiply
    4,993.28x = 7,489.82 × 2,219.20
  4. Step 4: Simplify right side
    4,993.28x = 16,621,408.54
  5. Step 5: Solve for x
    x = 16,621,408.54/4,993.28
  6. Step 6: Final answer
    x = 3,328.76

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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.