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Finding the Fourth Proportional to 967.05, 1,447.34 and 954.09

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Solution

The fourth proportional to 967.05, 1,447.34 and 954.09 is: 1,427.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.05 : 1,447.34 = 954.09 : x
  2. Step 2: Convert to fraction form
    967.05/1,447.34 = 954.09/x
  3. Step 3: Cross multiply
    967.05x = 1,447.34 × 954.09
  4. Step 4: Simplify right side
    967.05x = 1,380,887.85
  5. Step 5: Solve for x
    x = 1,380,887.85/967.05
  6. Step 6: Final answer
    x = 1,427.94

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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.