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Finding the Fourth Proportional to 5,887.21, 8,832.03 and 1,991.92

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Solution

The fourth proportional to 5,887.21, 8,832.03 and 1,991.92 is: 2,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,887.21 : 8,832.03 = 1,991.92 : x
  2. Step 2: Convert to fraction form
    5,887.21/8,832.03 = 1,991.92/x
  3. Step 3: Cross multiply
    5,887.21x = 8,832.03 × 1,991.92
  4. Step 4: Simplify right side
    5,887.21x = 17,592,697.20
  5. Step 5: Solve for x
    x = 17,592,697.20/5,887.21
  6. Step 6: Final answer
    x = 2,988.29

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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.