Home / 5-7.48-4

Finding the Fourth Proportional to 5, 7.48 and 4

Calculator

Solution

The fourth proportional to 5, 7.48 and 4 is: 5.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5 : 7.48 = 4 : x
  2. Step 2: Convert to fraction form
    5/7.48 = 4/x
  3. Step 3: Cross multiply
    5x = 7.48 × 4
  4. Step 4: Simplify right side
    5x = 29.92
  5. Step 5: Solve for x
    x = 29.92/5
  6. Step 6: Final answer
    x = 5.98

Related Problems

Find fourth proportional to 2.50, 3.74 and 2
Half scale
Find fourth proportional to 10, 14.96 and 8
Double scale
Find fourth proportional to 6, 8.98 and 5
Similar ratio
Find fourth proportional to 7.50, 11.22 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.