Home / 2,254.75-3,380.62-938.16

Finding the Fourth Proportional to 2,254.75, 3,380.62 and 938.16

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Solution

The fourth proportional to 2,254.75, 3,380.62 and 938.16 is: 1,406.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.75 : 3,380.62 = 938.16 : x
  2. Step 2: Convert to fraction form
    2,254.75/3,380.62 = 938.16/x
  3. Step 3: Cross multiply
    2,254.75x = 3,380.62 × 938.16
  4. Step 4: Simplify right side
    2,254.75x = 3,171,562.46
  5. Step 5: Solve for x
    x = 3,171,562.46/2,254.75
  6. Step 6: Final answer
    x = 1,406.61

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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.