Home / 2,739.72-3,777.93-2,517.78

Finding the Fourth Proportional to 2,739.72, 3,777.93 and 2,517.78

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Solution

The fourth proportional to 2,739.72, 3,777.93 and 2,517.78 is: 3,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,739.72 : 3,777.93 = 2,517.78 : x
  2. Step 2: Convert to fraction form
    2,739.72/3,777.93 = 2,517.78/x
  3. Step 3: Cross multiply
    2,739.72x = 3,777.93 × 2,517.78
  4. Step 4: Simplify right side
    2,739.72x = 9,511,996.60
  5. Step 5: Solve for x
    x = 9,511,996.60/2,739.72
  6. Step 6: Final answer
    x = 3,471.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.