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Finding the Third Proportional to 3,324 and 6,840

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Solution

The third proportional to 3,324 and 6,840 is: 14,075.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,324 : 6,840 = 6,840 : x
  2. Step 2: Convert to fraction form
    3,324/6,840 = 6,840/x
  3. Step 3: Cross multiply
    3,324x = 6,840 × 6,840
  4. Step 4: Simplify right side
    3,324x = 46,785,600
  5. Step 5: Solve for x
    x = 46,785,600/3,324
  6. Step 6: Final answer
    x = 14,075.09

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.