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Finding the Fourth Proportional to 1,608.12, 2,412.54 and 635.22

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Solution

The fourth proportional to 1,608.12, 2,412.54 and 635.22 is: 952.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.12 : 2,412.54 = 635.22 : x
  2. Step 2: Convert to fraction form
    1,608.12/2,412.54 = 635.22/x
  3. Step 3: Cross multiply
    1,608.12x = 2,412.54 × 635.22
  4. Step 4: Simplify right side
    1,608.12x = 1,532,493.66
  5. Step 5: Solve for x
    x = 1,532,493.66/1,608.12
  6. Step 6: Final answer
    x = 952.97

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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.