Home / 8,785.45-13,174.99-2,940.69

Finding the Fourth Proportional to 8,785.45, 13,174.99 and 2,940.69

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Solution

The fourth proportional to 8,785.45, 13,174.99 and 2,940.69 is: 4,409.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.45 : 13,174.99 = 2,940.69 : x
  2. Step 2: Convert to fraction form
    8,785.45/13,174.99 = 2,940.69/x
  3. Step 3: Cross multiply
    8,785.45x = 13,174.99 × 2,940.69
  4. Step 4: Simplify right side
    8,785.45x = 38,743,561.34
  5. Step 5: Solve for x
    x = 38,743,561.34/8,785.45
  6. Step 6: Final answer
    x = 4,409.97

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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.