Home / 2,816.82-3,887.45-1,637.81

Finding the Fourth Proportional to 2,816.82, 3,887.45 and 1,637.81

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Solution

The fourth proportional to 2,816.82, 3,887.45 and 1,637.81 is: 2,260.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.82 : 3,887.45 = 1,637.81 : x
  2. Step 2: Convert to fraction form
    2,816.82/3,887.45 = 1,637.81/x
  3. Step 3: Cross multiply
    2,816.82x = 3,887.45 × 1,637.81
  4. Step 4: Simplify right side
    2,816.82x = 6,366,912.16
  5. Step 5: Solve for x
    x = 6,366,912.16/2,816.82
  6. Step 6: Final answer
    x = 2,260.32

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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.