Home / 2,190.64-3,282-1,202.39

Finding the Fourth Proportional to 2,190.64, 3,282 and 1,202.39

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Solution

The fourth proportional to 2,190.64, 3,282 and 1,202.39 is: 1,801.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.64 : 3,282 = 1,202.39 : x
  2. Step 2: Convert to fraction form
    2,190.64/3,282 = 1,202.39/x
  3. Step 3: Cross multiply
    2,190.64x = 3,282 × 1,202.39
  4. Step 4: Simplify right side
    2,190.64x = 3,946,227.57
  5. Step 5: Solve for x
    x = 3,946,227.57/2,190.64
  6. Step 6: Final answer
    x = 1,801.41

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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.