Home / 3,171.80-4,757.52-1,881.47

Finding the Fourth Proportional to 3,171.80, 4,757.52 and 1,881.47

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Solution

The fourth proportional to 3,171.80, 4,757.52 and 1,881.47 is: 2,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.80 : 4,757.52 = 1,881.47 : x
  2. Step 2: Convert to fraction form
    3,171.80/4,757.52 = 1,881.47/x
  3. Step 3: Cross multiply
    3,171.80x = 4,757.52 × 1,881.47
  4. Step 4: Simplify right side
    3,171.80x = 8,951,150.10
  5. Step 5: Solve for x
    x = 8,951,150.10/3,171.80
  6. Step 6: Final answer
    x = 2,822.10

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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.