Home / 3,163.68-4,745.08-1,313.79

Finding the Fourth Proportional to 3,163.68, 4,745.08 and 1,313.79

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Solution

The fourth proportional to 3,163.68, 4,745.08 and 1,313.79 is: 1,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.68 : 4,745.08 = 1,313.79 : x
  2. Step 2: Convert to fraction form
    3,163.68/4,745.08 = 1,313.79/x
  3. Step 3: Cross multiply
    3,163.68x = 4,745.08 × 1,313.79
  4. Step 4: Simplify right side
    3,163.68x = 6,234,022.50
  5. Step 5: Solve for x
    x = 6,234,022.50/3,163.68
  6. Step 6: Final answer
    x = 1,970.50

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1.5x scale

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.