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Finding the Fourth Proportional to 3,270.22, 4,905.20 and 804.92

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Solution

The fourth proportional to 3,270.22, 4,905.20 and 804.92 is: 1,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.22 : 4,905.20 = 804.92 : x
  2. Step 2: Convert to fraction form
    3,270.22/4,905.20 = 804.92/x
  3. Step 3: Cross multiply
    3,270.22x = 4,905.20 × 804.92
  4. Step 4: Simplify right side
    3,270.22x = 3,948,293.58
  5. Step 5: Solve for x
    x = 3,948,293.58/3,270.22
  6. Step 6: Final answer
    x = 1,207.35

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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.