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Finding the Fourth Proportional to 2,644.13, 3,965.43 and 888.94

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Solution

The fourth proportional to 2,644.13, 3,965.43 and 888.94 is: 1,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,644.13 : 3,965.43 = 888.94 : x
  2. Step 2: Convert to fraction form
    2,644.13/3,965.43 = 888.94/x
  3. Step 3: Cross multiply
    2,644.13x = 3,965.43 × 888.94
  4. Step 4: Simplify right side
    2,644.13x = 3,525,037.63
  5. Step 5: Solve for x
    x = 3,525,037.63/2,644.13
  6. Step 6: Final answer
    x = 1,333.15

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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.