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Finding the Fourth Proportional to 1,600.67, 2,208.79 and 892.43

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Solution

The fourth proportional to 1,600.67, 2,208.79 and 892.43 is: 1,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.67 : 2,208.79 = 892.43 : x
  2. Step 2: Convert to fraction form
    1,600.67/2,208.79 = 892.43/x
  3. Step 3: Cross multiply
    1,600.67x = 2,208.79 × 892.43
  4. Step 4: Simplify right side
    1,600.67x = 1,971,190.46
  5. Step 5: Solve for x
    x = 1,971,190.46/1,600.67
  6. Step 6: Final answer
    x = 1,231.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.