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Finding the Fourth Proportional to 3,627.70, 5,007.02 and 2,211.86

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Solution

The fourth proportional to 3,627.70, 5,007.02 and 2,211.86 is: 3,052.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.70 : 5,007.02 = 2,211.86 : x
  2. Step 2: Convert to fraction form
    3,627.70/5,007.02 = 2,211.86/x
  3. Step 3: Cross multiply
    3,627.70x = 5,007.02 × 2,211.86
  4. Step 4: Simplify right side
    3,627.70x = 11,074,828.72
  5. Step 5: Solve for x
    x = 11,074,828.72/3,627.70
  6. Step 6: Final answer
    x = 3,052.85

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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.