Home / 3.92-5.87-3.16

Finding the Fourth Proportional to 3.92, 5.87 and 3.16

Calculator

Solution

The fourth proportional to 3.92, 5.87 and 3.16 is: 4.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.92 : 5.87 = 3.16 : x
  2. Step 2: Convert to fraction form
    3.92/5.87 = 3.16/x
  3. Step 3: Cross multiply
    3.92x = 5.87 × 3.16
  4. Step 4: Simplify right side
    3.92x = 18.55
  5. Step 5: Solve for x
    x = 18.55/3.92
  6. Step 6: Final answer
    x = 4.73

Related Problems

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.