Home / 5,192.09-7,789.16-1,905.21

Finding the Fourth Proportional to 5,192.09, 7,789.16 and 1,905.21

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Solution

The fourth proportional to 5,192.09, 7,789.16 and 1,905.21 is: 2,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,192.09 : 7,789.16 = 1,905.21 : x
  2. Step 2: Convert to fraction form
    5,192.09/7,789.16 = 1,905.21/x
  3. Step 3: Cross multiply
    5,192.09x = 7,789.16 × 1,905.21
  4. Step 4: Simplify right side
    5,192.09x = 14,839,976.00
  5. Step 5: Solve for x
    x = 14,839,976.00/5,192.09
  6. Step 6: Final answer
    x = 2,858.19

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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.