Home / 2,822.59-3,895.71-1,643.84

Finding the Fourth Proportional to 2,822.59, 3,895.71 and 1,643.84

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Solution

The fourth proportional to 2,822.59, 3,895.71 and 1,643.84 is: 2,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.59 : 3,895.71 = 1,643.84 : x
  2. Step 2: Convert to fraction form
    2,822.59/3,895.71 = 1,643.84/x
  3. Step 3: Cross multiply
    2,822.59x = 3,895.71 × 1,643.84
  4. Step 4: Simplify right side
    2,822.59x = 6,403,923.93
  5. Step 5: Solve for x
    x = 6,403,923.93/2,822.59
  6. Step 6: Final answer
    x = 2,268.82

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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.