Home / 4.08-5.64-4

Finding the Fourth Proportional to 4.08, 5.64 and 4

Calculator

Solution

The fourth proportional to 4.08, 5.64 and 4 is: 5.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.08 : 5.64 = 4 : x
  2. Step 2: Convert to fraction form
    4.08/5.64 = 4/x
  3. Step 3: Cross multiply
    4.08x = 5.64 × 4
  4. Step 4: Simplify right side
    4.08x = 22.56
  5. Step 5: Solve for x
    x = 22.56/4.08
  6. Step 6: Final answer
    x = 5.53

Related Problems

Find fourth proportional to 2.04, 2.82 and 2
Half scale
Find fourth proportional to 8.16, 11.28 and 8
Double scale
Find fourth proportional to 5.08, 7.02 and 5
Similar ratio
Find fourth proportional to 6.12, 8.46 and 6
1.5x scale

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.