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Finding the Fourth Proportional to 1,600.36, 2,208.46 and 892.20

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Solution

The fourth proportional to 1,600.36, 2,208.46 and 892.20 is: 1,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.36 : 2,208.46 = 892.20 : x
  2. Step 2: Convert to fraction form
    1,600.36/2,208.46 = 892.20/x
  3. Step 3: Cross multiply
    1,600.36x = 2,208.46 × 892.20
  4. Step 4: Simplify right side
    1,600.36x = 1,970,388.01
  5. Step 5: Solve for x
    x = 1,970,388.01/1,600.36
  6. Step 6: Final answer
    x = 1,231.22

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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.