Home / 6,920-10,380-2,056

Finding the Fourth Proportional to 6,920, 10,380 and 2,056

Calculator

Solution

The fourth proportional to 6,920, 10,380 and 2,056 is: 3,084

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920 : 10,380 = 2,056 : x
  2. Step 2: Convert to fraction form
    6,920/10,380 = 2,056/x
  3. Step 3: Cross multiply
    6,920x = 10,380 × 2,056
  4. Step 4: Simplify right side
    6,920x = 21,341,280
  5. Step 5: Solve for x
    x = 21,341,280/6,920
  6. Step 6: Final answer
    x = 3,084

Related Problems

Find fourth proportional to 3,460, 5,190 and 1,028
Half scale
Find fourth proportional to 13,840, 20,760 and 4,112
Double scale
Find fourth proportional to 6,921, 10,381.50 and 2,057
Similar ratio
Find fourth proportional to 10,380, 15,570 and 3,084
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.