Home / 1,816.73-2,502.31-1,396.28

Finding the Fourth Proportional to 1,816.73, 2,502.31 and 1,396.28

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Solution

The fourth proportional to 1,816.73, 2,502.31 and 1,396.28 is: 1,923.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.73 : 2,502.31 = 1,396.28 : x
  2. Step 2: Convert to fraction form
    1,816.73/2,502.31 = 1,396.28/x
  3. Step 3: Cross multiply
    1,816.73x = 2,502.31 × 1,396.28
  4. Step 4: Simplify right side
    1,816.73x = 3,493,912.90
  5. Step 5: Solve for x
    x = 3,493,912.90/1,816.73
  6. Step 6: Final answer
    x = 1,923.19

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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.