Home / 8,782.80-13,179.39-3,240.04

Finding the Fourth Proportional to 8,782.80, 13,179.39 and 3,240.04

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Solution

The fourth proportional to 8,782.80, 13,179.39 and 3,240.04 is: 4,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.80 : 13,179.39 = 3,240.04 : x
  2. Step 2: Convert to fraction form
    8,782.80/13,179.39 = 3,240.04/x
  3. Step 3: Cross multiply
    8,782.80x = 13,179.39 × 3,240.04
  4. Step 4: Simplify right side
    8,782.80x = 42,701,750.78
  5. Step 5: Solve for x
    x = 42,701,750.78/8,782.80
  6. Step 6: Final answer
    x = 4,861.97

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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.