Home / 2,822.86-3,895.77-1,643.50

Finding the Fourth Proportional to 2,822.86, 3,895.77 and 1,643.50

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Solution

The fourth proportional to 2,822.86, 3,895.77 and 1,643.50 is: 2,268.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.86 : 3,895.77 = 1,643.50 : x
  2. Step 2: Convert to fraction form
    2,822.86/3,895.77 = 1,643.50/x
  3. Step 3: Cross multiply
    2,822.86x = 3,895.77 × 1,643.50
  4. Step 4: Simplify right side
    2,822.86x = 6,402,698.00
  5. Step 5: Solve for x
    x = 6,402,698.00/2,822.86
  6. Step 6: Final answer
    x = 2,268.16

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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.