Home / 4,479.67-6,720.68-4,198.29

Finding the Fourth Proportional to 4,479.67, 6,720.68 and 4,198.29

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Solution

The fourth proportional to 4,479.67, 6,720.68 and 4,198.29 is: 6,298.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.67 : 6,720.68 = 4,198.29 : x
  2. Step 2: Convert to fraction form
    4,479.67/6,720.68 = 4,198.29/x
  3. Step 3: Cross multiply
    4,479.67x = 6,720.68 × 4,198.29
  4. Step 4: Simplify right side
    4,479.67x = 28,215,363.64
  5. Step 5: Solve for x
    x = 28,215,363.64/4,479.67
  6. Step 6: Final answer
    x = 6,298.54

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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.