Home / 4.51-6.75-4

Finding the Fourth Proportional to 4.51, 6.75 and 4

Calculator

Solution

The fourth proportional to 4.51, 6.75 and 4 is: 5.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.51 : 6.75 = 4 : x
  2. Step 2: Convert to fraction form
    4.51/6.75 = 4/x
  3. Step 3: Cross multiply
    4.51x = 6.75 × 4
  4. Step 4: Simplify right side
    4.51x = 27
  5. Step 5: Solve for x
    x = 27/4.51
  6. Step 6: Final answer
    x = 5.99

Related Problems

Find fourth proportional to 2.26, 3.38 and 2
Half scale
Find fourth proportional to 9.02, 13.50 and 8
Double scale
Find fourth proportional to 5.51, 8.25 and 5
Similar ratio
Find fourth proportional to 6.77, 10.13 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.