Home / 3,195.78-4,789.89-1,346.25

Finding the Fourth Proportional to 3,195.78, 4,789.89 and 1,346.25

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Solution

The fourth proportional to 3,195.78, 4,789.89 and 1,346.25 is: 2,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,195.78 : 4,789.89 = 1,346.25 : x
  2. Step 2: Convert to fraction form
    3,195.78/4,789.89 = 1,346.25/x
  3. Step 3: Cross multiply
    3,195.78x = 4,789.89 × 1,346.25
  4. Step 4: Simplify right side
    3,195.78x = 6,448,389.41
  5. Step 5: Solve for x
    x = 6,448,389.41/3,195.78
  6. Step 6: Final answer
    x = 2,017.78

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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.