Home / 2,512.20-3,765.90-1,956.60

Finding the Fourth Proportional to 2,512.20, 3,765.90 and 1,956.60

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Solution

The fourth proportional to 2,512.20, 3,765.90 and 1,956.60 is: 2,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,512.20 : 3,765.90 = 1,956.60 : x
  2. Step 2: Convert to fraction form
    2,512.20/3,765.90 = 1,956.60/x
  3. Step 3: Cross multiply
    2,512.20x = 3,765.90 × 1,956.60
  4. Step 4: Simplify right side
    2,512.20x = 7,368,359.94
  5. Step 5: Solve for x
    x = 7,368,359.94/2,512.20
  6. Step 6: Final answer
    x = 2,933.03

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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.