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Finding the Fourth Proportional to 2,489.70, 3,734.52 and 1,009.59

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Solution

The fourth proportional to 2,489.70, 3,734.52 and 1,009.59 is: 1,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.70 : 3,734.52 = 1,009.59 : x
  2. Step 2: Convert to fraction form
    2,489.70/3,734.52 = 1,009.59/x
  3. Step 3: Cross multiply
    2,489.70x = 3,734.52 × 1,009.59
  4. Step 4: Simplify right side
    2,489.70x = 3,770,334.05
  5. Step 5: Solve for x
    x = 3,770,334.05/2,489.70
  6. Step 6: Final answer
    x = 1,514.37

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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.