Home / 3,163.56-4,745.40-1,085.95

Finding the Fourth Proportional to 3,163.56, 4,745.40 and 1,085.95

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Solution

The fourth proportional to 3,163.56, 4,745.40 and 1,085.95 is: 1,628.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.56 : 4,745.40 = 1,085.95 : x
  2. Step 2: Convert to fraction form
    3,163.56/4,745.40 = 1,085.95/x
  3. Step 3: Cross multiply
    3,163.56x = 4,745.40 × 1,085.95
  4. Step 4: Simplify right side
    3,163.56x = 5,153,277.13
  5. Step 5: Solve for x
    x = 5,153,277.13/3,163.56
  6. Step 6: Final answer
    x = 1,628.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.