Home / 3,319.93-4,579.96-1,991.33

Finding the Fourth Proportional to 3,319.93, 4,579.96 and 1,991.33

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Solution

The fourth proportional to 3,319.93, 4,579.96 and 1,991.33 is: 2,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.93 : 4,579.96 = 1,991.33 : x
  2. Step 2: Convert to fraction form
    3,319.93/4,579.96 = 1,991.33/x
  3. Step 3: Cross multiply
    3,319.93x = 4,579.96 × 1,991.33
  4. Step 4: Simplify right side
    3,319.93x = 9,120,211.75
  5. Step 5: Solve for x
    x = 9,120,211.75/3,319.93
  6. Step 6: Final answer
    x = 2,747.11

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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.