Home / 2,531-3,795.87-2,120.33

Finding the Fourth Proportional to 2,531, 3,795.87 and 2,120.33

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Solution

The fourth proportional to 2,531, 3,795.87 and 2,120.33 is: 3,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531 : 3,795.87 = 2,120.33 : x
  2. Step 2: Convert to fraction form
    2,531/3,795.87 = 2,120.33/x
  3. Step 3: Cross multiply
    2,531x = 3,795.87 × 2,120.33
  4. Step 4: Simplify right side
    2,531x = 8,048,497.04
  5. Step 5: Solve for x
    x = 8,048,497.04/2,531
  6. Step 6: Final answer
    x = 3,179.97

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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.