Home / 1,240.50-1,855

Finding the Third Proportional to 1,240.50 and 1,855

Calculator

Solution

The third proportional to 1,240.50 and 1,855 is: 2,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240.50 : 1,855 = 1,855 : x
  2. Step 2: Convert to fraction form
    1,240.50/1,855 = 1,855/x
  3. Step 3: Cross multiply
    1,240.50x = 1,855 × 1,855
  4. Step 4: Simplify right side
    1,240.50x = 3,441,025
  5. Step 5: Solve for x
    x = 3,441,025/1,240.50
  6. Step 6: Final answer
    x = 2,773.90

Related Problems

Find third proportional to 620.25 and 927.50
Half scale
Find third proportional to 2,481 and 3,710
Double scale
Find third proportional to 1,243 and 1,858
Similar ratio
Find third proportional to 1,860.75 and 2,782.50
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.