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Finding the Fourth Proportional to 3,269.76, 4,910.42 and 3,009.20

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Solution

The fourth proportional to 3,269.76, 4,910.42 and 3,009.20 is: 4,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,269.76 : 4,910.42 = 3,009.20 : x
  2. Step 2: Convert to fraction form
    3,269.76/4,910.42 = 3,009.20/x
  3. Step 3: Cross multiply
    3,269.76x = 4,910.42 × 3,009.20
  4. Step 4: Simplify right side
    3,269.76x = 14,776,435.86
  5. Step 5: Solve for x
    x = 14,776,435.86/3,269.76
  6. Step 6: Final answer
    x = 4,519.12

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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.