Home / 629-1,319

Finding the Third Proportional to 629 and 1,319

Calculator

Solution

The third proportional to 629 and 1,319 is: 2,765.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    629 : 1,319 = 1,319 : x
  2. Step 2: Convert to fraction form
    629/1,319 = 1,319/x
  3. Step 3: Cross multiply
    629x = 1,319 × 1,319
  4. Step 4: Simplify right side
    629x = 1,739,761
  5. Step 5: Solve for x
    x = 1,739,761/629
  6. Step 6: Final answer
    x = 2,765.92

Related Problems

Find third proportional to 314.50 and 659.50
Half scale
Find third proportional to 1,258 and 2,638
Double scale
Find third proportional to 631 and 1,323
Similar ratio
Find third proportional to 943.50 and 1,978.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.