Home / 3.88-5.35-3.16

Finding the Fourth Proportional to 3.88, 5.35 and 3.16

Calculator

Solution

The fourth proportional to 3.88, 5.35 and 3.16 is: 4.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.88 : 5.35 = 3.16 : x
  2. Step 2: Convert to fraction form
    3.88/5.35 = 3.16/x
  3. Step 3: Cross multiply
    3.88x = 5.35 × 3.16
  4. Step 4: Simplify right side
    3.88x = 16.91
  5. Step 5: Solve for x
    x = 16.91/3.88
  6. Step 6: Final answer
    x = 4.36

Related Problems

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.