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Finding the Third Proportional to 2,686.50 and 6,280.88

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Solution

The third proportional to 2,686.50 and 6,280.88 is: 14,684.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.50 : 6,280.88 = 6,280.88 : x
  2. Step 2: Convert to fraction form
    2,686.50/6,280.88 = 6,280.88/x
  3. Step 3: Cross multiply
    2,686.50x = 6,280.88 × 6,280.88
  4. Step 4: Simplify right side
    2,686.50x = 39,449,390.77
  5. Step 5: Solve for x
    x = 39,449,390.77/2,686.50
  6. Step 6: Final answer
    x = 14,684.31

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.