Home / 5.36-7.40-4

Finding the Fourth Proportional to 5.36, 7.40 and 4

Calculator

Solution

The fourth proportional to 5.36, 7.40 and 4 is: 5.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.36 : 7.40 = 4 : x
  2. Step 2: Convert to fraction form
    5.36/7.40 = 4/x
  3. Step 3: Cross multiply
    5.36x = 7.40 × 4
  4. Step 4: Simplify right side
    5.36x = 29.60
  5. Step 5: Solve for x
    x = 29.60/5.36
  6. Step 6: Final answer
    x = 5.52

Related Problems

Find fourth proportional to 2.68, 3.70 and 2
Half scale
Find fourth proportional to 10.72, 14.80 and 8
Double scale
Find fourth proportional to 6.36, 8.78 and 5
Similar ratio
Find fourth proportional to 8.04, 11.10 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.