Home / 3,163.16-4,745.33-1,215.20

Finding the Fourth Proportional to 3,163.16, 4,745.33 and 1,215.20

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Solution

The fourth proportional to 3,163.16, 4,745.33 and 1,215.20 is: 1,823.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.16 : 4,745.33 = 1,215.20 : x
  2. Step 2: Convert to fraction form
    3,163.16/4,745.33 = 1,215.20/x
  3. Step 3: Cross multiply
    3,163.16x = 4,745.33 × 1,215.20
  4. Step 4: Simplify right side
    3,163.16x = 5,766,525.02
  5. Step 5: Solve for x
    x = 5,766,525.02/3,163.16
  6. Step 6: Final answer
    x = 1,823.03

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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.