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Finding the Fourth Proportional to 2,270.26, 3,406.35 and 954.31

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Solution

The fourth proportional to 2,270.26, 3,406.35 and 954.31 is: 1,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.26 : 3,406.35 = 954.31 : x
  2. Step 2: Convert to fraction form
    2,270.26/3,406.35 = 954.31/x
  3. Step 3: Cross multiply
    2,270.26x = 3,406.35 × 954.31
  4. Step 4: Simplify right side
    2,270.26x = 3,250,713.87
  5. Step 5: Solve for x
    x = 3,250,713.87/2,270.26
  6. Step 6: Final answer
    x = 1,431.87

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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.