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Finding the Fourth Proportional to 1,171.29, 1,757.14 and 441.08

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Solution

The fourth proportional to 1,171.29, 1,757.14 and 441.08 is: 661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,171.29 : 1,757.14 = 441.08 : x
  2. Step 2: Convert to fraction form
    1,171.29/1,757.14 = 441.08/x
  3. Step 3: Cross multiply
    1,171.29x = 1,757.14 × 441.08
  4. Step 4: Simplify right side
    1,171.29x = 775,039.31
  5. Step 5: Solve for x
    x = 775,039.31/1,171.29
  6. Step 6: Final answer
    x = 661.70

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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.