Home / 2,519.40-3,777.30-1,131.60

Finding the Fourth Proportional to 2,519.40, 3,777.30 and 1,131.60

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Solution

The fourth proportional to 2,519.40, 3,777.30 and 1,131.60 is: 1,696.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.40 : 3,777.30 = 1,131.60 : x
  2. Step 2: Convert to fraction form
    2,519.40/3,777.30 = 1,131.60/x
  3. Step 3: Cross multiply
    2,519.40x = 3,777.30 × 1,131.60
  4. Step 4: Simplify right side
    2,519.40x = 4,274,392.68
  5. Step 5: Solve for x
    x = 4,274,392.68/2,519.40
  6. Step 6: Final answer
    x = 1,696.59

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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.