Home / 1,811.27-2,716.61-512.44

Finding the Fourth Proportional to 1,811.27, 2,716.61 and 512.44

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Solution

The fourth proportional to 1,811.27, 2,716.61 and 512.44 is: 768.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.27 : 2,716.61 = 512.44 : x
  2. Step 2: Convert to fraction form
    1,811.27/2,716.61 = 512.44/x
  3. Step 3: Cross multiply
    1,811.27x = 2,716.61 × 512.44
  4. Step 4: Simplify right side
    1,811.27x = 1,392,090.27
  5. Step 5: Solve for x
    x = 1,392,090.27/1,811.27
  6. Step 6: Final answer
    x = 768.57

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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.