Home / 3,131.07-4,694.31-1,898.52

Finding the Fourth Proportional to 3,131.07, 4,694.31 and 1,898.52

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Solution

The fourth proportional to 3,131.07, 4,694.31 and 1,898.52 is: 2,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.07 : 4,694.31 = 1,898.52 : x
  2. Step 2: Convert to fraction form
    3,131.07/4,694.31 = 1,898.52/x
  3. Step 3: Cross multiply
    3,131.07x = 4,694.31 × 1,898.52
  4. Step 4: Simplify right side
    3,131.07x = 8,912,241.42
  5. Step 5: Solve for x
    x = 8,912,241.42/3,131.07
  6. Step 6: Final answer
    x = 2,846.39

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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.