Home / 6,991.05-10,474.26-3,696.90

Finding the Fourth Proportional to 6,991.05, 10,474.26 and 3,696.90

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Solution

The fourth proportional to 6,991.05, 10,474.26 and 3,696.90 is: 5,538.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.05 : 10,474.26 = 3,696.90 : x
  2. Step 2: Convert to fraction form
    6,991.05/10,474.26 = 3,696.90/x
  3. Step 3: Cross multiply
    6,991.05x = 10,474.26 × 3,696.90
  4. Step 4: Simplify right side
    6,991.05x = 38,722,291.79
  5. Step 5: Solve for x
    x = 38,722,291.79/6,991.05
  6. Step 6: Final answer
    x = 5,538.84

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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.