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Finding the Fourth Proportional to 2,553.51, 3,830.31 and 704.61

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Solution

The fourth proportional to 2,553.51, 3,830.31 and 704.61 is: 1,056.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,553.51 : 3,830.31 = 704.61 : x
  2. Step 2: Convert to fraction form
    2,553.51/3,830.31 = 704.61/x
  3. Step 3: Cross multiply
    2,553.51x = 3,830.31 × 704.61
  4. Step 4: Simplify right side
    2,553.51x = 2,698,874.73
  5. Step 5: Solve for x
    x = 2,698,874.73/2,553.51
  6. Step 6: Final answer
    x = 1,056.93

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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.