Home / 2,190.34-3,281.57-1,202.09

Finding the Fourth Proportional to 2,190.34, 3,281.57 and 1,202.09

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Solution

The fourth proportional to 2,190.34, 3,281.57 and 1,202.09 is: 1,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.34 : 3,281.57 = 1,202.09 : x
  2. Step 2: Convert to fraction form
    2,190.34/3,281.57 = 1,202.09/x
  3. Step 3: Cross multiply
    2,190.34x = 3,281.57 × 1,202.09
  4. Step 4: Simplify right side
    2,190.34x = 3,944,729.08
  5. Step 5: Solve for x
    x = 3,944,729.08/2,190.34
  6. Step 6: Final answer
    x = 1,800.97

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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.