Home / 2,822.50-3,895.46-1,643.95

Finding the Fourth Proportional to 2,822.50, 3,895.46 and 1,643.95

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Solution

The fourth proportional to 2,822.50, 3,895.46 and 1,643.95 is: 2,268.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.50 : 3,895.46 = 1,643.95 : x
  2. Step 2: Convert to fraction form
    2,822.50/3,895.46 = 1,643.95/x
  3. Step 3: Cross multiply
    2,822.50x = 3,895.46 × 1,643.95
  4. Step 4: Simplify right side
    2,822.50x = 6,403,941.47
  5. Step 5: Solve for x
    x = 6,403,941.47/2,822.50
  6. Step 6: Final answer
    x = 2,268.89

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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.