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Finding the Fourth Proportional to 1,997.91, 2,992.26 and 958.62

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Solution

The fourth proportional to 1,997.91, 2,992.26 and 958.62 is: 1,435.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.91 : 2,992.26 = 958.62 : x
  2. Step 2: Convert to fraction form
    1,997.91/2,992.26 = 958.62/x
  3. Step 3: Cross multiply
    1,997.91x = 2,992.26 × 958.62
  4. Step 4: Simplify right side
    1,997.91x = 2,868,440.28
  5. Step 5: Solve for x
    x = 2,868,440.28/1,997.91
  6. Step 6: Final answer
    x = 1,435.72

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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.