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Finding the Fourth Proportional to 3,270.71, 4,909.71 and 1,626.82

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Solution

The fourth proportional to 3,270.71, 4,909.71 and 1,626.82 is: 2,442.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,270.71 : 4,909.71 = 1,626.82 : x
  2. Step 2: Convert to fraction form
    3,270.71/4,909.71 = 1,626.82/x
  3. Step 3: Cross multiply
    3,270.71x = 4,909.71 × 1,626.82
  4. Step 4: Simplify right side
    3,270.71x = 7,987,208.25
  5. Step 5: Solve for x
    x = 7,987,208.25/3,270.71
  6. Step 6: Final answer
    x = 2,442.04

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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.