Home / 7,975.25-11,961.49-2,130.49

Finding the Fourth Proportional to 7,975.25, 11,961.49 and 2,130.49

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Solution

The fourth proportional to 7,975.25, 11,961.49 and 2,130.49 is: 3,195.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,975.25 : 11,961.49 = 2,130.49 : x
  2. Step 2: Convert to fraction form
    7,975.25/11,961.49 = 2,130.49/x
  3. Step 3: Cross multiply
    7,975.25x = 11,961.49 × 2,130.49
  4. Step 4: Simplify right side
    7,975.25x = 25,483,834.83
  5. Step 5: Solve for x
    x = 25,483,834.83/7,975.25
  6. Step 6: Final answer
    x = 3,195.37

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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.