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Finding the Fourth Proportional to 2,585.03, 3,874.46 and 940.68

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Solution

The fourth proportional to 2,585.03, 3,874.46 and 940.68 is: 1,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.03 : 3,874.46 = 940.68 : x
  2. Step 2: Convert to fraction form
    2,585.03/3,874.46 = 940.68/x
  3. Step 3: Cross multiply
    2,585.03x = 3,874.46 × 940.68
  4. Step 4: Simplify right side
    2,585.03x = 3,644,635.54
  5. Step 5: Solve for x
    x = 3,644,635.54/2,585.03
  6. Step 6: Final answer
    x = 1,409.90

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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.