Home / 3,204-4,806-1,380

Finding the Fourth Proportional to 3,204, 4,806 and 1,380

Calculator

Solution

The fourth proportional to 3,204, 4,806 and 1,380 is: 2,070

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,204 : 4,806 = 1,380 : x
  2. Step 2: Convert to fraction form
    3,204/4,806 = 1,380/x
  3. Step 3: Cross multiply
    3,204x = 4,806 × 1,380
  4. Step 4: Simplify right side
    3,204x = 6,632,280
  5. Step 5: Solve for x
    x = 6,632,280/3,204
  6. Step 6: Final answer
    x = 2,070

Related Problems

Find fourth proportional to 1,602, 2,403 and 690
Half scale
Find fourth proportional to 6,408, 9,612 and 2,760
Double scale
Find fourth proportional to 3,205, 4,807.50 and 1,381
Similar ratio
Find fourth proportional to 4,806, 7,209 and 2,070
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.