Home / 4.54-6.80-4

Finding the Fourth Proportional to 4.54, 6.80 and 4

Calculator

Solution

The fourth proportional to 4.54, 6.80 and 4 is: 5.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.54 : 6.80 = 4 : x
  2. Step 2: Convert to fraction form
    4.54/6.80 = 4/x
  3. Step 3: Cross multiply
    4.54x = 6.80 × 4
  4. Step 4: Simplify right side
    4.54x = 27.20
  5. Step 5: Solve for x
    x = 27.20/4.54
  6. Step 6: Final answer
    x = 5.99

Related Problems

Find fourth proportional to 2.27, 3.40 and 2
Half scale
Find fourth proportional to 9.08, 13.60 and 8
Double scale
Find fourth proportional to 5.54, 8.30 and 5
Similar ratio
Find fourth proportional to 6.81, 10.20 and 6
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.