Home / 2,168.24-2,991.72-1,236.56

Finding the Fourth Proportional to 2,168.24, 2,991.72 and 1,236.56

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Solution

The fourth proportional to 2,168.24, 2,991.72 and 1,236.56 is: 1,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.24 : 2,991.72 = 1,236.56 : x
  2. Step 2: Convert to fraction form
    2,168.24/2,991.72 = 1,236.56/x
  3. Step 3: Cross multiply
    2,168.24x = 2,991.72 × 1,236.56
  4. Step 4: Simplify right side
    2,168.24x = 3,699,441.28
  5. Step 5: Solve for x
    x = 3,699,441.28/2,168.24
  6. Step 6: Final answer
    x = 1,706.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.