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Finding the Third Proportional to 1,077 and 2,904

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Solution

The third proportional to 1,077 and 2,904 is: 7,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077 : 2,904 = 2,904 : x
  2. Step 2: Convert to fraction form
    1,077/2,904 = 2,904/x
  3. Step 3: Cross multiply
    1,077x = 2,904 × 2,904
  4. Step 4: Simplify right side
    1,077x = 8,433,216
  5. Step 5: Solve for x
    x = 8,433,216/1,077
  6. Step 6: Final answer
    x = 7,830.28

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Why These Related Problems?

These problems maintain the same ratio (2.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.