Home / 698.50-1,081

Finding the Third Proportional to 698.50 and 1,081

Calculator

Solution

The third proportional to 698.50 and 1,081 is: 1,672.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.50 : 1,081 = 1,081 : x
  2. Step 2: Convert to fraction form
    698.50/1,081 = 1,081/x
  3. Step 3: Cross multiply
    698.50x = 1,081 × 1,081
  4. Step 4: Simplify right side
    698.50x = 1,168,561
  5. Step 5: Solve for x
    x = 1,168,561/698.50
  6. Step 6: Final answer
    x = 1,672.96

Related Problems

Find third proportional to 349.25 and 540.50
Half scale
Find third proportional to 1,397 and 2,162
Double scale
Find third proportional to 701 and 1,084
Similar ratio
Find third proportional to 1,047.75 and 1,621.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.