Home / 3,208-4,812-1,156

Finding the Fourth Proportional to 3,208, 4,812 and 1,156

Calculator

Solution

The fourth proportional to 3,208, 4,812 and 1,156 is: 1,734

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208 : 4,812 = 1,156 : x
  2. Step 2: Convert to fraction form
    3,208/4,812 = 1,156/x
  3. Step 3: Cross multiply
    3,208x = 4,812 × 1,156
  4. Step 4: Simplify right side
    3,208x = 5,562,672
  5. Step 5: Solve for x
    x = 5,562,672/3,208
  6. Step 6: Final answer
    x = 1,734

Related Problems

Find fourth proportional to 1,604, 2,406 and 578
Half scale
Find fourth proportional to 6,416, 9,624 and 2,312
Double scale
Find fourth proportional to 3,209, 4,813.50 and 1,157
Similar ratio
Find fourth proportional to 4,812, 7,218 and 1,734
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.