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Finding the Fourth Proportional to 1,704.57, 2,558.07 and 731.37

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Solution

The fourth proportional to 1,704.57, 2,558.07 and 731.37 is: 1,097.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.57 : 2,558.07 = 731.37 : x
  2. Step 2: Convert to fraction form
    1,704.57/2,558.07 = 731.37/x
  3. Step 3: Cross multiply
    1,704.57x = 2,558.07 × 731.37
  4. Step 4: Simplify right side
    1,704.57x = 1,870,895.66
  5. Step 5: Solve for x
    x = 1,870,895.66/1,704.57
  6. Step 6: Final answer
    x = 1,097.58

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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.