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Finding the Fourth Proportional to 2,000.21, 2,997.68 and 889.25

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Solution

The fourth proportional to 2,000.21, 2,997.68 and 889.25 is: 1,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.21 : 2,997.68 = 889.25 : x
  2. Step 2: Convert to fraction form
    2,000.21/2,997.68 = 889.25/x
  3. Step 3: Cross multiply
    2,000.21x = 2,997.68 × 889.25
  4. Step 4: Simplify right side
    2,000.21x = 2,665,667.51
  5. Step 5: Solve for x
    x = 2,665,667.51/2,000.21
  6. Step 6: Final answer
    x = 1,332.70

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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.