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Finding the Fourth Proportional to 2,892.36, 3,991.32 and 1,633.32

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Solution

The fourth proportional to 2,892.36, 3,991.32 and 1,633.32 is: 2,253.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,892.36 : 3,991.32 = 1,633.32 : x
  2. Step 2: Convert to fraction form
    2,892.36/3,991.32 = 1,633.32/x
  3. Step 3: Cross multiply
    2,892.36x = 3,991.32 × 1,633.32
  4. Step 4: Simplify right side
    2,892.36x = 6,519,102.78
  5. Step 5: Solve for x
    x = 6,519,102.78/2,892.36
  6. Step 6: Final answer
    x = 2,253.90

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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.