Home / 3,191.74-4,789.42-1,731.90

Finding the Fourth Proportional to 3,191.74, 4,789.42 and 1,731.90

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Solution

The fourth proportional to 3,191.74, 4,789.42 and 1,731.90 is: 2,598.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.74 : 4,789.42 = 1,731.90 : x
  2. Step 2: Convert to fraction form
    3,191.74/4,789.42 = 1,731.90/x
  3. Step 3: Cross multiply
    3,191.74x = 4,789.42 × 1,731.90
  4. Step 4: Simplify right side
    3,191.74x = 8,294,796.50
  5. Step 5: Solve for x
    x = 8,294,796.50/3,191.74
  6. Step 6: Final answer
    x = 2,598.83

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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.