Home / 2,822.13-3,894.44-1,643.17

Finding the Fourth Proportional to 2,822.13, 3,894.44 and 1,643.17

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Solution

The fourth proportional to 2,822.13, 3,894.44 and 1,643.17 is: 2,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.13 : 3,894.44 = 1,643.17 : x
  2. Step 2: Convert to fraction form
    2,822.13/3,894.44 = 1,643.17/x
  3. Step 3: Cross multiply
    2,822.13x = 3,894.44 × 1,643.17
  4. Step 4: Simplify right side
    2,822.13x = 6,399,226.97
  5. Step 5: Solve for x
    x = 6,399,226.97/2,822.13
  6. Step 6: Final answer
    x = 2,267.52

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1.5x scale

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.