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Finding the Fourth Proportional to 6,641, 9,965.54 and 2,744.90

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Solution

The fourth proportional to 6,641, 9,965.54 and 2,744.90 is: 4,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641 : 9,965.54 = 2,744.90 : x
  2. Step 2: Convert to fraction form
    6,641/9,965.54 = 2,744.90/x
  3. Step 3: Cross multiply
    6,641x = 9,965.54 × 2,744.90
  4. Step 4: Simplify right side
    6,641x = 27,354,410.75
  5. Step 5: Solve for x
    x = 27,354,410.75/6,641
  6. Step 6: Final answer
    x = 4,119.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.