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Finding the Third Proportional to 1,801.88 and 3,977.44

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Solution

The third proportional to 1,801.88 and 3,977.44 is: 8,779.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,801.88 : 3,977.44 = 3,977.44 : x
  2. Step 2: Convert to fraction form
    1,801.88/3,977.44 = 3,977.44/x
  3. Step 3: Cross multiply
    1,801.88x = 3,977.44 × 3,977.44
  4. Step 4: Simplify right side
    1,801.88x = 15,820,009.07
  5. Step 5: Solve for x
    x = 15,820,009.07/1,801.88
  6. Step 6: Final answer
    x = 8,779.75

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.