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Finding the Fourth Proportional to 3,194.70, 4,789.20 and 1,246.45

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Solution

The fourth proportional to 3,194.70, 4,789.20 and 1,246.45 is: 1,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,194.70 : 4,789.20 = 1,246.45 : x
  2. Step 2: Convert to fraction form
    3,194.70/4,789.20 = 1,246.45/x
  3. Step 3: Cross multiply
    3,194.70x = 4,789.20 × 1,246.45
  4. Step 4: Simplify right side
    3,194.70x = 5,969,498.34
  5. Step 5: Solve for x
    x = 5,969,498.34/3,194.70
  6. Step 6: Final answer
    x = 1,868.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.