Home / 7,189.90-10,786.38-4,071.37

Finding the Fourth Proportional to 7,189.90, 10,786.38 and 4,071.37

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Solution

The fourth proportional to 7,189.90, 10,786.38 and 4,071.37 is: 6,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,189.90 : 10,786.38 = 4,071.37 : x
  2. Step 2: Convert to fraction form
    7,189.90/10,786.38 = 4,071.37/x
  3. Step 3: Cross multiply
    7,189.90x = 10,786.38 × 4,071.37
  4. Step 4: Simplify right side
    7,189.90x = 43,915,343.94
  5. Step 5: Solve for x
    x = 43,915,343.94/7,189.90
  6. Step 6: Final answer
    x = 6,107.92

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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.