Home / 383-772

Finding the Third Proportional to 383 and 772

Calculator

Solution

The third proportional to 383 and 772 is: 1,556.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    383 : 772 = 772 : x
  2. Step 2: Convert to fraction form
    383/772 = 772/x
  3. Step 3: Cross multiply
    383x = 772 × 772
  4. Step 4: Simplify right side
    383x = 595,984
  5. Step 5: Solve for x
    x = 595,984/383
  6. Step 6: Final answer
    x = 1,556.09

Related Problems

Find third proportional to 191.50 and 386
Half scale
Find third proportional to 766 and 1,544
Double scale
Find third proportional to 385 and 776
Similar ratio
Find third proportional to 574.50 and 1,158
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.