Home / 892-1,338-379

Finding the Fourth Proportional to 892, 1,338 and 379

Calculator

Solution

The fourth proportional to 892, 1,338 and 379 is: 568.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    892 : 1,338 = 379 : x
  2. Step 2: Convert to fraction form
    892/1,338 = 379/x
  3. Step 3: Cross multiply
    892x = 1,338 × 379
  4. Step 4: Simplify right side
    892x = 507,102
  5. Step 5: Solve for x
    x = 507,102/892
  6. Step 6: Final answer
    x = 568.50

Related Problems

Find fourth proportional to 446, 669 and 189.50
Half scale
Find fourth proportional to 1,784, 2,676 and 758
Double scale
Find fourth proportional to 893, 1,339.50 and 380
Similar ratio
Find fourth proportional to 1,338, 2,007 and 568.50
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.