Home / 3,171.44-4,375.50-1,912.02

Finding the Fourth Proportional to 3,171.44, 4,375.50 and 1,912.02

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Solution

The fourth proportional to 3,171.44, 4,375.50 and 1,912.02 is: 2,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.44 : 4,375.50 = 1,912.02 : x
  2. Step 2: Convert to fraction form
    3,171.44/4,375.50 = 1,912.02/x
  3. Step 3: Cross multiply
    3,171.44x = 4,375.50 × 1,912.02
  4. Step 4: Simplify right side
    3,171.44x = 8,366,043.51
  5. Step 5: Solve for x
    x = 8,366,043.51/3,171.44
  6. Step 6: Final answer
    x = 2,637.93

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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.