Home / 3,608.20-5,409.60-1,966.60

Finding the Fourth Proportional to 3,608.20, 5,409.60 and 1,966.60

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Solution

The fourth proportional to 3,608.20, 5,409.60 and 1,966.60 is: 2,948.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.20 : 5,409.60 = 1,966.60 : x
  2. Step 2: Convert to fraction form
    3,608.20/5,409.60 = 1,966.60/x
  3. Step 3: Cross multiply
    3,608.20x = 5,409.60 × 1,966.60
  4. Step 4: Simplify right side
    3,608.20x = 10,638,519.36
  5. Step 5: Solve for x
    x = 10,638,519.36/3,608.20
  6. Step 6: Final answer
    x = 2,948.43

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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.