Home / 7,890.91-11,834.67-2,960.90

Finding the Fourth Proportional to 7,890.91, 11,834.67 and 2,960.90

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Solution

The fourth proportional to 7,890.91, 11,834.67 and 2,960.90 is: 4,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.91 : 11,834.67 = 2,960.90 : x
  2. Step 2: Convert to fraction form
    7,890.91/11,834.67 = 2,960.90/x
  3. Step 3: Cross multiply
    7,890.91x = 11,834.67 × 2,960.90
  4. Step 4: Simplify right side
    7,890.91x = 35,041,274.40
  5. Step 5: Solve for x
    x = 35,041,274.40/7,890.91
  6. Step 6: Final answer
    x = 4,440.71

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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.