Home / 4,243.20-6,364.96-1,321.44

Finding the Fourth Proportional to 4,243.20, 6,364.96 and 1,321.44

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Solution

The fourth proportional to 4,243.20, 6,364.96 and 1,321.44 is: 1,982.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.20 : 6,364.96 = 1,321.44 : x
  2. Step 2: Convert to fraction form
    4,243.20/6,364.96 = 1,321.44/x
  3. Step 3: Cross multiply
    4,243.20x = 6,364.96 × 1,321.44
  4. Step 4: Simplify right side
    4,243.20x = 8,410,912.74
  5. Step 5: Solve for x
    x = 8,410,912.74/4,243.20
  6. Step 6: Final answer
    x = 1,982.21

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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.