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Finding the Fourth Proportional to 1,704.29, 2,351.97 and 958.39

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Solution

The fourth proportional to 1,704.29, 2,351.97 and 958.39 is: 1,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.29 : 2,351.97 = 958.39 : x
  2. Step 2: Convert to fraction form
    1,704.29/2,351.97 = 958.39/x
  3. Step 3: Cross multiply
    1,704.29x = 2,351.97 × 958.39
  4. Step 4: Simplify right side
    1,704.29x = 2,254,098.65
  5. Step 5: Solve for x
    x = 2,254,098.65/1,704.29
  6. Step 6: Final answer
    x = 1,322.61

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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.