Home / 4,479.30-6,720.30-3,183.30

Finding the Fourth Proportional to 4,479.30, 6,720.30 and 3,183.30

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Solution

The fourth proportional to 4,479.30, 6,720.30 and 3,183.30 is: 4,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.30 : 6,720.30 = 3,183.30 : x
  2. Step 2: Convert to fraction form
    4,479.30/6,720.30 = 3,183.30/x
  3. Step 3: Cross multiply
    4,479.30x = 6,720.30 × 3,183.30
  4. Step 4: Simplify right side
    4,479.30x = 21,392,730.99
  5. Step 5: Solve for x
    x = 21,392,730.99/4,479.30
  6. Step 6: Final answer
    x = 4,775.91

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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.