Home / 779-1,564

Finding the Third Proportional to 779 and 1,564

Calculator

Solution

The third proportional to 779 and 1,564 is: 3,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    779 : 1,564 = 1,564 : x
  2. Step 2: Convert to fraction form
    779/1,564 = 1,564/x
  3. Step 3: Cross multiply
    779x = 1,564 × 1,564
  4. Step 4: Simplify right side
    779x = 2,446,096
  5. Step 5: Solve for x
    x = 2,446,096/779
  6. Step 6: Final answer
    x = 3,140.05

Related Problems

Find third proportional to 389.50 and 782
Half scale
Find third proportional to 1,558 and 3,128
Double scale
Find third proportional to 781 and 1,568
Similar ratio
Find third proportional to 1,168.50 and 2,346
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.01) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.