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Finding the Fourth Proportional to 5,991.72, 8,991.42 and 2,912.04

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Solution

The fourth proportional to 5,991.72, 8,991.42 and 2,912.04 is: 4,369.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,991.72 : 8,991.42 = 2,912.04 : x
  2. Step 2: Convert to fraction form
    5,991.72/8,991.42 = 2,912.04/x
  3. Step 3: Cross multiply
    5,991.72x = 8,991.42 × 2,912.04
  4. Step 4: Simplify right side
    5,991.72x = 26,183,374.70
  5. Step 5: Solve for x
    x = 26,183,374.70/5,991.72
  6. Step 6: Final answer
    x = 4,369.93

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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.