Home / 2,822.49-3,895.26-1,643.79

Finding the Fourth Proportional to 2,822.49, 3,895.26 and 1,643.79

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Solution

The fourth proportional to 2,822.49, 3,895.26 and 1,643.79 is: 2,268.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.49 : 3,895.26 = 1,643.79 : x
  2. Step 2: Convert to fraction form
    2,822.49/3,895.26 = 1,643.79/x
  3. Step 3: Cross multiply
    2,822.49x = 3,895.26 × 1,643.79
  4. Step 4: Simplify right side
    2,822.49x = 6,402,989.44
  5. Step 5: Solve for x
    x = 6,402,989.44/2,822.49
  6. Step 6: Final answer
    x = 2,268.56

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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.