Home / 2,409.75-3,325.91-1,361.81

Finding the Fourth Proportional to 2,409.75, 3,325.91 and 1,361.81

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Solution

The fourth proportional to 2,409.75, 3,325.91 and 1,361.81 is: 1,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.75 : 3,325.91 = 1,361.81 : x
  2. Step 2: Convert to fraction form
    2,409.75/3,325.91 = 1,361.81/x
  3. Step 3: Cross multiply
    2,409.75x = 3,325.91 × 1,361.81
  4. Step 4: Simplify right side
    2,409.75x = 4,529,266.66
  5. Step 5: Solve for x
    x = 4,529,266.66/2,409.75
  6. Step 6: Final answer
    x = 1,879.56

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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.