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Finding the Fourth Proportional to 2,997.00, 4,494.97 and 805.21

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Solution

The fourth proportional to 2,997.00, 4,494.97 and 805.21 is: 1,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.00 : 4,494.97 = 805.21 : x
  2. Step 2: Convert to fraction form
    2,997.00/4,494.97 = 805.21/x
  3. Step 3: Cross multiply
    2,997.00x = 4,494.97 × 805.21
  4. Step 4: Simplify right side
    2,997.00x = 3,619,404.02
  5. Step 5: Solve for x
    x = 3,619,404.02/2,997.00
  6. Step 6: Final answer
    x = 1,207.68

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1.5x scale

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.