Home / 8,785.20-13,174.62-2,940.45

Finding the Fourth Proportional to 8,785.20, 13,174.62 and 2,940.45

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Solution

The fourth proportional to 8,785.20, 13,174.62 and 2,940.45 is: 4,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.20 : 13,174.62 = 2,940.45 : x
  2. Step 2: Convert to fraction form
    8,785.20/13,174.62 = 2,940.45/x
  3. Step 3: Cross multiply
    8,785.20x = 13,174.62 × 2,940.45
  4. Step 4: Simplify right side
    8,785.20x = 38,739,311.38
  5. Step 5: Solve for x
    x = 38,739,311.38/8,785.20
  6. Step 6: Final answer
    x = 4,409.61

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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.