Home / 655-1,431

Finding the Third Proportional to 655 and 1,431

Calculator

Solution

The third proportional to 655 and 1,431 is: 3,126.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655 : 1,431 = 1,431 : x
  2. Step 2: Convert to fraction form
    655/1,431 = 1,431/x
  3. Step 3: Cross multiply
    655x = 1,431 × 1,431
  4. Step 4: Simplify right side
    655x = 2,047,761
  5. Step 5: Solve for x
    x = 2,047,761/655
  6. Step 6: Final answer
    x = 3,126.35

Related Problems

Find third proportional to 327.50 and 715.50
Half scale
Find third proportional to 1,310 and 2,862
Double scale
Find third proportional to 657 and 1,435
Similar ratio
Find third proportional to 982.50 and 2,146.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.