Home / 4,321.12-6,479.07-1,819.30

Finding the Fourth Proportional to 4,321.12, 6,479.07 and 1,819.30

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Solution

The fourth proportional to 4,321.12, 6,479.07 and 1,819.30 is: 2,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.12 : 6,479.07 = 1,819.30 : x
  2. Step 2: Convert to fraction form
    4,321.12/6,479.07 = 1,819.30/x
  3. Step 3: Cross multiply
    4,321.12x = 6,479.07 × 1,819.30
  4. Step 4: Simplify right side
    4,321.12x = 11,787,372.05
  5. Step 5: Solve for x
    x = 11,787,372.05/4,321.12
  6. Step 6: Final answer
    x = 2,727.85

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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.