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Finding the Fourth Proportional to 2,699.72, 4,049.79 and 1,056.26

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Solution

The fourth proportional to 2,699.72, 4,049.79 and 1,056.26 is: 1,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.72 : 4,049.79 = 1,056.26 : x
  2. Step 2: Convert to fraction form
    2,699.72/4,049.79 = 1,056.26/x
  3. Step 3: Cross multiply
    2,699.72x = 4,049.79 × 1,056.26
  4. Step 4: Simplify right side
    2,699.72x = 4,277,610.94
  5. Step 5: Solve for x
    x = 4,277,610.94/2,699.72
  6. Step 6: Final answer
    x = 1,584.47

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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.