Home / 6,939.25-10,409.97-2,991.63

Finding the Fourth Proportional to 6,939.25, 10,409.97 and 2,991.63

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Solution

The fourth proportional to 6,939.25, 10,409.97 and 2,991.63 is: 4,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.25 : 10,409.97 = 2,991.63 : x
  2. Step 2: Convert to fraction form
    6,939.25/10,409.97 = 2,991.63/x
  3. Step 3: Cross multiply
    6,939.25x = 10,409.97 × 2,991.63
  4. Step 4: Simplify right side
    6,939.25x = 31,142,745.01
  5. Step 5: Solve for x
    x = 31,142,745.01/6,939.25
  6. Step 6: Final answer
    x = 4,487.91

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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.