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Finding the Fourth Proportional to 1,995.26, 2,992.28 and 954.71

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Solution

The fourth proportional to 1,995.26, 2,992.28 and 954.71 is: 1,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995.26 : 2,992.28 = 954.71 : x
  2. Step 2: Convert to fraction form
    1,995.26/2,992.28 = 954.71/x
  3. Step 3: Cross multiply
    1,995.26x = 2,992.28 × 954.71
  4. Step 4: Simplify right side
    1,995.26x = 2,856,759.64
  5. Step 5: Solve for x
    x = 2,856,759.64/1,995.26
  6. Step 6: Final answer
    x = 1,431.77

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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.