Home / 3,790.65-5,231.16-2,112.03

Finding the Fourth Proportional to 3,790.65, 5,231.16 and 2,112.03

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Solution

The fourth proportional to 3,790.65, 5,231.16 and 2,112.03 is: 2,914.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.65 : 5,231.16 = 2,112.03 : x
  2. Step 2: Convert to fraction form
    3,790.65/5,231.16 = 2,112.03/x
  3. Step 3: Cross multiply
    3,790.65x = 5,231.16 × 2,112.03
  4. Step 4: Simplify right side
    3,790.65x = 11,048,366.85
  5. Step 5: Solve for x
    x = 11,048,366.85/3,790.65
  6. Step 6: Final answer
    x = 2,914.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.