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Finding the Fourth Proportional to 7,803.91, 11,704.99 and 1,960.53

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Solution

The fourth proportional to 7,803.91, 11,704.99 and 1,960.53 is: 2,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,803.91 : 11,704.99 = 1,960.53 : x
  2. Step 2: Convert to fraction form
    7,803.91/11,704.99 = 1,960.53/x
  3. Step 3: Cross multiply
    7,803.91x = 11,704.99 × 1,960.53
  4. Step 4: Simplify right side
    7,803.91x = 22,947,984.04
  5. Step 5: Solve for x
    x = 22,947,984.04/7,803.91
  6. Step 6: Final answer
    x = 2,940.58

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1.5x scale

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.