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Finding the Fourth Proportional to 3,321.90, 4,706.73 and 3,321.90

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Solution

The fourth proportional to 3,321.90, 4,706.73 and 3,321.90 is: 4,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.90 : 4,706.73 = 3,321.90 : x
  2. Step 2: Convert to fraction form
    3,321.90/4,706.73 = 3,321.90/x
  3. Step 3: Cross multiply
    3,321.90x = 4,706.73 × 3,321.90
  4. Step 4: Simplify right side
    3,321.90x = 15,635,286.39
  5. Step 5: Solve for x
    x = 15,635,286.39/3,321.90
  6. Step 6: Final answer
    x = 4,706.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.