Home / 2,247.21-3,371.27-787.39

Finding the Fourth Proportional to 2,247.21, 3,371.27 and 787.39

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Solution

The fourth proportional to 2,247.21, 3,371.27 and 787.39 is: 1,181.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,247.21 : 3,371.27 = 787.39 : x
  2. Step 2: Convert to fraction form
    2,247.21/3,371.27 = 787.39/x
  3. Step 3: Cross multiply
    2,247.21x = 3,371.27 × 787.39
  4. Step 4: Simplify right side
    2,247.21x = 2,654,497.83
  5. Step 5: Solve for x
    x = 2,654,497.83/2,247.21
  6. Step 6: Final answer
    x = 1,181.24

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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.