Home / 2,912.88-3,984.23-2,867.52

Finding the Fourth Proportional to 2,912.88, 3,984.23 and 2,867.52

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Solution

The fourth proportional to 2,912.88, 3,984.23 and 2,867.52 is: 3,922.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.88 : 3,984.23 = 2,867.52 : x
  2. Step 2: Convert to fraction form
    2,912.88/3,984.23 = 2,867.52/x
  3. Step 3: Cross multiply
    2,912.88x = 3,984.23 × 2,867.52
  4. Step 4: Simplify right side
    2,912.88x = 11,424,844.87
  5. Step 5: Solve for x
    x = 11,424,844.87/2,912.88
  6. Step 6: Final answer
    x = 3,922.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.