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Finding the Fourth Proportional to 3,951.58, 5,450.07 and 3,686.62

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Solution

The fourth proportional to 3,951.58, 5,450.07 and 3,686.62 is: 5,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.58 : 5,450.07 = 3,686.62 : x
  2. Step 2: Convert to fraction form
    3,951.58/5,450.07 = 3,686.62/x
  3. Step 3: Cross multiply
    3,951.58x = 5,450.07 × 3,686.62
  4. Step 4: Simplify right side
    3,951.58x = 20,092,337.06
  5. Step 5: Solve for x
    x = 20,092,337.06/3,951.58
  6. Step 6: Final answer
    x = 5,084.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.