Home / 777.50-1,383

Finding the Third Proportional to 777.50 and 1,383

Calculator

Solution

The third proportional to 777.50 and 1,383 is: 2,460.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    777.50 : 1,383 = 1,383 : x
  2. Step 2: Convert to fraction form
    777.50/1,383 = 1,383/x
  3. Step 3: Cross multiply
    777.50x = 1,383 × 1,383
  4. Step 4: Simplify right side
    777.50x = 1,912,689
  5. Step 5: Solve for x
    x = 1,912,689/777.50
  6. Step 6: Final answer
    x = 2,460.05

Related Problems

Find third proportional to 388.75 and 691.50
Half scale
Find third proportional to 1,555 and 2,766
Double scale
Find third proportional to 780 and 1,387
Similar ratio
Find third proportional to 1,166.25 and 2,074.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.