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Finding the Fourth Proportional to 2,893.58, 3,990.03 and 2,832.83

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Solution

The fourth proportional to 2,893.58, 3,990.03 and 2,832.83 is: 3,906.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,893.58 : 3,990.03 = 2,832.83 : x
  2. Step 2: Convert to fraction form
    2,893.58/3,990.03 = 2,832.83/x
  3. Step 3: Cross multiply
    2,893.58x = 3,990.03 × 2,832.83
  4. Step 4: Simplify right side
    2,893.58x = 11,303,076.68
  5. Step 5: Solve for x
    x = 11,303,076.68/2,893.58
  6. Step 6: Final answer
    x = 3,906.26

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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.