Home / 7,960.90-11,941.37-2,117.51

Finding the Fourth Proportional to 7,960.90, 11,941.37 and 2,117.51

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Solution

The fourth proportional to 7,960.90, 11,941.37 and 2,117.51 is: 3,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.90 : 11,941.37 = 2,117.51 : x
  2. Step 2: Convert to fraction form
    7,960.90/11,941.37 = 2,117.51/x
  3. Step 3: Cross multiply
    7,960.90x = 11,941.37 × 2,117.51
  4. Step 4: Simplify right side
    7,960.90x = 25,285,975.21
  5. Step 5: Solve for x
    x = 25,285,975.21/7,960.90
  6. Step 6: Final answer
    x = 3,176.27

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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.