Home / 368-813

Finding the Third Proportional to 368 and 813

Calculator

Solution

The third proportional to 368 and 813 is: 1,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368 : 813 = 813 : x
  2. Step 2: Convert to fraction form
    368/813 = 813/x
  3. Step 3: Cross multiply
    368x = 813 × 813
  4. Step 4: Simplify right side
    368x = 660,969
  5. Step 5: Solve for x
    x = 660,969/368
  6. Step 6: Final answer
    x = 1,796.11

Related Problems

Find third proportional to 184 and 406.50
Half scale
Find third proportional to 736 and 1,626
Double scale
Find third proportional to 370 and 817
Similar ratio
Find third proportional to 552 and 1,219.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.