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Finding the Third Proportional to 2,779.31 and 4,251.66

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Solution

The third proportional to 2,779.31 and 4,251.66 is: 6,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.31 : 4,251.66 = 4,251.66 : x
  2. Step 2: Convert to fraction form
    2,779.31/4,251.66 = 4,251.66/x
  3. Step 3: Cross multiply
    2,779.31x = 4,251.66 × 4,251.66
  4. Step 4: Simplify right side
    2,779.31x = 18,076,580.87
  5. Step 5: Solve for x
    x = 18,076,580.87/2,779.31
  6. Step 6: Final answer
    x = 6,503.98

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.