Home / 3,191.88-4,789.66-1,436.36

Finding the Fourth Proportional to 3,191.88, 4,789.66 and 1,436.36

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Solution

The fourth proportional to 3,191.88, 4,789.66 and 1,436.36 is: 2,155.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.88 : 4,789.66 = 1,436.36 : x
  2. Step 2: Convert to fraction form
    3,191.88/4,789.66 = 1,436.36/x
  3. Step 3: Cross multiply
    3,191.88x = 4,789.66 × 1,436.36
  4. Step 4: Simplify right side
    3,191.88x = 6,879,676.04
  5. Step 5: Solve for x
    x = 6,879,676.04/3,191.88
  6. Step 6: Final answer
    x = 2,155.37

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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.