Home / 7,961.26-11,941.88-2,117.87

Finding the Fourth Proportional to 7,961.26, 11,941.88 and 2,117.87

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Solution

The fourth proportional to 7,961.26, 11,941.88 and 2,117.87 is: 3,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.26 : 11,941.88 = 2,117.87 : x
  2. Step 2: Convert to fraction form
    7,961.26/11,941.88 = 2,117.87/x
  3. Step 3: Cross multiply
    7,961.26x = 11,941.88 × 2,117.87
  4. Step 4: Simplify right side
    7,961.26x = 25,291,332.67
  5. Step 5: Solve for x
    x = 25,291,332.67/7,961.26
  6. Step 6: Final answer
    x = 3,176.80

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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.