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Finding the Fourth Proportional to 1,662.26, 2,489.04 and 969.26

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Solution

The fourth proportional to 1,662.26, 2,489.04 and 969.26 is: 1,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662.26 : 2,489.04 = 969.26 : x
  2. Step 2: Convert to fraction form
    1,662.26/2,489.04 = 969.26/x
  3. Step 3: Cross multiply
    1,662.26x = 2,489.04 × 969.26
  4. Step 4: Simplify right side
    1,662.26x = 2,412,514.47
  5. Step 5: Solve for x
    x = 2,412,514.47/1,662.26
  6. Step 6: Final answer
    x = 1,451.35

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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.