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Finding the Fourth Proportional to 3,009.54, 4,514.42 and 818.33

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Solution

The fourth proportional to 3,009.54, 4,514.42 and 818.33 is: 1,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,009.54 : 4,514.42 = 818.33 : x
  2. Step 2: Convert to fraction form
    3,009.54/4,514.42 = 818.33/x
  3. Step 3: Cross multiply
    3,009.54x = 4,514.42 × 818.33
  4. Step 4: Simplify right side
    3,009.54x = 3,694,285.32
  5. Step 5: Solve for x
    x = 3,694,285.32/3,009.54
  6. Step 6: Final answer
    x = 1,227.52

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1.5x scale

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.