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Finding the Third Proportional to 1,120 and 2,724

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Solution

The third proportional to 1,120 and 2,724 is: 6,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120 : 2,724 = 2,724 : x
  2. Step 2: Convert to fraction form
    1,120/2,724 = 2,724/x
  3. Step 3: Cross multiply
    1,120x = 2,724 × 2,724
  4. Step 4: Simplify right side
    1,120x = 7,420,176
  5. Step 5: Solve for x
    x = 7,420,176/1,120
  6. Step 6: Final answer
    x = 6,625.16

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.