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Finding the Fourth Proportional to 2,960.94, 4,439.87 and 880.67

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Solution

The fourth proportional to 2,960.94, 4,439.87 and 880.67 is: 1,320.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.94 : 4,439.87 = 880.67 : x
  2. Step 2: Convert to fraction form
    2,960.94/4,439.87 = 880.67/x
  3. Step 3: Cross multiply
    2,960.94x = 4,439.87 × 880.67
  4. Step 4: Simplify right side
    2,960.94x = 3,910,033.71
  5. Step 5: Solve for x
    x = 3,910,033.71/2,960.94
  6. Step 6: Final answer
    x = 1,320.54

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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.