Home / 3,171.72-4,757.48-1,418.34

Finding the Fourth Proportional to 3,171.72, 4,757.48 and 1,418.34

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Solution

The fourth proportional to 3,171.72, 4,757.48 and 1,418.34 is: 2,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.72 : 4,757.48 = 1,418.34 : x
  2. Step 2: Convert to fraction form
    3,171.72/4,757.48 = 1,418.34/x
  3. Step 3: Cross multiply
    3,171.72x = 4,757.48 × 1,418.34
  4. Step 4: Simplify right side
    3,171.72x = 6,747,703.94
  5. Step 5: Solve for x
    x = 6,747,703.94/3,171.72
  6. Step 6: Final answer
    x = 2,127.46

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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.