Home / 7,960.80-11,941.74-2,117.28

Finding the Fourth Proportional to 7,960.80, 11,941.74 and 2,117.28

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Solution

The fourth proportional to 7,960.80, 11,941.74 and 2,117.28 is: 3,176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.80 : 11,941.74 = 2,117.28 : x
  2. Step 2: Convert to fraction form
    7,960.80/11,941.74 = 2,117.28/x
  3. Step 3: Cross multiply
    7,960.80x = 11,941.74 × 2,117.28
  4. Step 4: Simplify right side
    7,960.80x = 25,284,007.27
  5. Step 5: Solve for x
    x = 25,284,007.27/7,960.80
  6. Step 6: Final answer
    x = 3,176.06

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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.