Home / 3,185.73-4,395.56-1,858.95

Finding the Fourth Proportional to 3,185.73, 4,395.56 and 1,858.95

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Solution

The fourth proportional to 3,185.73, 4,395.56 and 1,858.95 is: 2,564.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.73 : 4,395.56 = 1,858.95 : x
  2. Step 2: Convert to fraction form
    3,185.73/4,395.56 = 1,858.95/x
  3. Step 3: Cross multiply
    3,185.73x = 4,395.56 × 1,858.95
  4. Step 4: Simplify right side
    3,185.73x = 8,171,116.97
  5. Step 5: Solve for x
    x = 8,171,116.97/3,185.73
  6. Step 6: Final answer
    x = 2,564.91

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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.