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Finding the Fourth Proportional to 5,867.67, 8,801.78 and 2,169.21

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Solution

The fourth proportional to 5,867.67, 8,801.78 and 2,169.21 is: 3,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,867.67 : 8,801.78 = 2,169.21 : x
  2. Step 2: Convert to fraction form
    5,867.67/8,801.78 = 2,169.21/x
  3. Step 3: Cross multiply
    5,867.67x = 8,801.78 × 2,169.21
  4. Step 4: Simplify right side
    5,867.67x = 19,092,898.35
  5. Step 5: Solve for x
    x = 19,092,898.35/5,867.67
  6. Step 6: Final answer
    x = 3,253.91

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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.