Home / 4,321.72-6,481.20-1,399.44

Finding the Fourth Proportional to 4,321.72, 6,481.20 and 1,399.44

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Solution

The fourth proportional to 4,321.72, 6,481.20 and 1,399.44 is: 2,098.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.72 : 6,481.20 = 1,399.44 : x
  2. Step 2: Convert to fraction form
    4,321.72/6,481.20 = 1,399.44/x
  3. Step 3: Cross multiply
    4,321.72x = 6,481.20 × 1,399.44
  4. Step 4: Simplify right side
    4,321.72x = 9,070,050.53
  5. Step 5: Solve for x
    x = 9,070,050.53/4,321.72
  6. Step 6: Final answer
    x = 2,098.71

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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.