Home / 2,986-4,479-934

Finding the Fourth Proportional to 2,986, 4,479 and 934

Calculator

Solution

The fourth proportional to 2,986, 4,479 and 934 is: 1,401

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986 : 4,479 = 934 : x
  2. Step 2: Convert to fraction form
    2,986/4,479 = 934/x
  3. Step 3: Cross multiply
    2,986x = 4,479 × 934
  4. Step 4: Simplify right side
    2,986x = 4,183,386
  5. Step 5: Solve for x
    x = 4,183,386/2,986
  6. Step 6: Final answer
    x = 1,401

Related Problems

Find fourth proportional to 1,493, 2,239.50 and 467
Half scale
Find fourth proportional to 5,972, 8,958 and 1,868
Double scale
Find fourth proportional to 2,987, 4,480.50 and 935
Similar ratio
Find fourth proportional to 4,479, 6,718.50 and 1,401
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.