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Finding the Fourth Proportional to 2,639.94, 3,958.58 and 884.33

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Solution

The fourth proportional to 2,639.94, 3,958.58 and 884.33 is: 1,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.94 : 3,958.58 = 884.33 : x
  2. Step 2: Convert to fraction form
    2,639.94/3,958.58 = 884.33/x
  3. Step 3: Cross multiply
    2,639.94x = 3,958.58 × 884.33
  4. Step 4: Simplify right side
    2,639.94x = 3,500,666.84
  5. Step 5: Solve for x
    x = 3,500,666.84/2,639.94
  6. Step 6: Final answer
    x = 1,326.04

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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.