Home / 7,991.70-11,984.94-2,796.36

Finding the Fourth Proportional to 7,991.70, 11,984.94 and 2,796.36

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Solution

The fourth proportional to 7,991.70, 11,984.94 and 2,796.36 is: 4,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.70 : 11,984.94 = 2,796.36 : x
  2. Step 2: Convert to fraction form
    7,991.70/11,984.94 = 2,796.36/x
  3. Step 3: Cross multiply
    7,991.70x = 11,984.94 × 2,796.36
  4. Step 4: Simplify right side
    7,991.70x = 33,514,206.82
  5. Step 5: Solve for x
    x = 33,514,206.82/7,991.70
  6. Step 6: Final answer
    x = 4,193.63

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1.5x scale

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.