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Finding the Fourth Proportional to 2,458.22, 3,687.33 and 728.06

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Solution

The fourth proportional to 2,458.22, 3,687.33 and 728.06 is: 1,092.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,458.22 : 3,687.33 = 728.06 : x
  2. Step 2: Convert to fraction form
    2,458.22/3,687.33 = 728.06/x
  3. Step 3: Cross multiply
    2,458.22x = 3,687.33 × 728.06
  4. Step 4: Simplify right side
    2,458.22x = 2,684,597.48
  5. Step 5: Solve for x
    x = 2,684,597.48/2,458.22
  6. Step 6: Final answer
    x = 1,092.09

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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.