Home / 2,131.07-3,196.60-1,020.22

Finding the Fourth Proportional to 2,131.07, 3,196.60 and 1,020.22

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Solution

The fourth proportional to 2,131.07, 3,196.60 and 1,020.22 is: 1,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.07 : 3,196.60 = 1,020.22 : x
  2. Step 2: Convert to fraction form
    2,131.07/3,196.60 = 1,020.22/x
  3. Step 3: Cross multiply
    2,131.07x = 3,196.60 × 1,020.22
  4. Step 4: Simplify right side
    2,131.07x = 3,261,235.25
  5. Step 5: Solve for x
    x = 3,261,235.25/2,131.07
  6. Step 6: Final answer
    x = 1,530.33

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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.