Home / 3,270.18-4,905.24-1,321.86

Finding the Fourth Proportional to 3,270.18, 4,905.24 and 1,321.86

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Solution

The fourth proportional to 3,270.18, 4,905.24 and 1,321.86 is: 1,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.18 : 4,905.24 = 1,321.86 : x
  2. Step 2: Convert to fraction form
    3,270.18/4,905.24 = 1,321.86/x
  3. Step 3: Cross multiply
    3,270.18x = 4,905.24 × 1,321.86
  4. Step 4: Simplify right side
    3,270.18x = 6,484,040.55
  5. Step 5: Solve for x
    x = 6,484,040.55/3,270.18
  6. Step 6: Final answer
    x = 1,982.78

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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.