Home / 3,091.59-4,636.31-1,919.79

Finding the Fourth Proportional to 3,091.59, 4,636.31 and 1,919.79

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Solution

The fourth proportional to 3,091.59, 4,636.31 and 1,919.79 is: 2,879.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.59 : 4,636.31 = 1,919.79 : x
  2. Step 2: Convert to fraction form
    3,091.59/4,636.31 = 1,919.79/x
  3. Step 3: Cross multiply
    3,091.59x = 4,636.31 × 1,919.79
  4. Step 4: Simplify right side
    3,091.59x = 8,900,731.98
  5. Step 5: Solve for x
    x = 8,900,731.98/3,091.59
  6. Step 6: Final answer
    x = 2,879.01

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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.