Home / 653.25-1,080

Finding the Third Proportional to 653.25 and 1,080

Calculator

Solution

The third proportional to 653.25 and 1,080 is: 1,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.25 : 1,080 = 1,080 : x
  2. Step 2: Convert to fraction form
    653.25/1,080 = 1,080/x
  3. Step 3: Cross multiply
    653.25x = 1,080 × 1,080
  4. Step 4: Simplify right side
    653.25x = 1,166,400
  5. Step 5: Solve for x
    x = 1,166,400/653.25
  6. Step 6: Final answer
    x = 1,785.53

Related Problems

Find third proportional to 326.63 and 540
Half scale
Find third proportional to 1,306.50 and 2,160
Double scale
Find third proportional to 655 and 1,083
Similar ratio
Find third proportional to 979.88 and 1,620
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.