Home / 5.79-8.67-4

Finding the Fourth Proportional to 5.79, 8.67 and 4

Calculator

Solution

The fourth proportional to 5.79, 8.67 and 4 is: 5.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5.79 : 8.67 = 4 : x
  2. Step 2: Convert to fraction form
    5.79/8.67 = 4/x
  3. Step 3: Cross multiply
    5.79x = 8.67 × 4
  4. Step 4: Simplify right side
    5.79x = 34.68
  5. Step 5: Solve for x
    x = 34.68/5.79
  6. Step 6: Final answer
    x = 5.99

Related Problems

Find fourth proportional to 2.90, 4.34 and 2
Half scale
Find fourth proportional to 11.58, 17.34 and 8
Double scale
Find fourth proportional to 6.79, 10.17 and 5
Similar ratio
Find fourth proportional to 8.69, 13.01 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.