Home / 5,400-7,804

Finding the Third Proportional to 5,400 and 7,804

Calculator

Solution

The third proportional to 5,400 and 7,804 is: 11,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,400 : 7,804 = 7,804 : x
  2. Step 2: Convert to fraction form
    5,400/7,804 = 7,804/x
  3. Step 3: Cross multiply
    5,400x = 7,804 × 7,804
  4. Step 4: Simplify right side
    5,400x = 60,902,416
  5. Step 5: Solve for x
    x = 60,902,416/5,400
  6. Step 6: Final answer
    x = 11,278.23

Related Problems

Find third proportional to 2,700 and 3,902
Half scale
Find third proportional to 10,800 and 15,608
Double scale
Find third proportional to 5,402 and 7,807
Similar ratio
Find third proportional to 8,100 and 11,706
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.