Home / 3,290.58-4,936.83-1,211.22

Finding the Fourth Proportional to 3,290.58, 4,936.83 and 1,211.22

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Solution

The fourth proportional to 3,290.58, 4,936.83 and 1,211.22 is: 1,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.58 : 4,936.83 = 1,211.22 : x
  2. Step 2: Convert to fraction form
    3,290.58/4,936.83 = 1,211.22/x
  3. Step 3: Cross multiply
    3,290.58x = 4,936.83 × 1,211.22
  4. Step 4: Simplify right side
    3,290.58x = 5,979,587.23
  5. Step 5: Solve for x
    x = 5,979,587.23/3,290.58
  6. Step 6: Final answer
    x = 1,817.18

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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.