Home / 3,270.24-4,905.18-1,321.92

Finding the Fourth Proportional to 3,270.24, 4,905.18 and 1,321.92

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Solution

The fourth proportional to 3,270.24, 4,905.18 and 1,321.92 is: 1,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.24 : 4,905.18 = 1,321.92 : x
  2. Step 2: Convert to fraction form
    3,270.24/4,905.18 = 1,321.92/x
  3. Step 3: Cross multiply
    3,270.24x = 4,905.18 × 1,321.92
  4. Step 4: Simplify right side
    3,270.24x = 6,484,255.55
  5. Step 5: Solve for x
    x = 6,484,255.55/3,270.24
  6. Step 6: Final answer
    x = 1,982.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.