Home / 2,185.24-3,015.66-1,190.56

Finding the Fourth Proportional to 2,185.24, 3,015.66 and 1,190.56

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Solution

The fourth proportional to 2,185.24, 3,015.66 and 1,190.56 is: 1,642.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.24 : 3,015.66 = 1,190.56 : x
  2. Step 2: Convert to fraction form
    2,185.24/3,015.66 = 1,190.56/x
  3. Step 3: Cross multiply
    2,185.24x = 3,015.66 × 1,190.56
  4. Step 4: Simplify right side
    2,185.24x = 3,590,309.09
  5. Step 5: Solve for x
    x = 3,590,309.09/2,185.24
  6. Step 6: Final answer
    x = 1,642.99

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Why These Related Problems?

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