Home / 5,221.83-7,832.75-3,991.44

Finding the Fourth Proportional to 5,221.83, 7,832.75 and 3,991.44

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Solution

The fourth proportional to 5,221.83, 7,832.75 and 3,991.44 is: 5,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.83 : 7,832.75 = 3,991.44 : x
  2. Step 2: Convert to fraction form
    5,221.83/7,832.75 = 3,991.44/x
  3. Step 3: Cross multiply
    5,221.83x = 7,832.75 × 3,991.44
  4. Step 4: Simplify right side
    5,221.83x = 31,263,951.66
  5. Step 5: Solve for x
    x = 31,263,951.66/5,221.83
  6. Step 6: Final answer
    x = 5,987.16

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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.