Home / 1,721-3,706

Finding the Third Proportional to 1,721 and 3,706

Calculator

Solution

The third proportional to 1,721 and 3,706 is: 7,980.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721 : 3,706 = 3,706 : x
  2. Step 2: Convert to fraction form
    1,721/3,706 = 3,706/x
  3. Step 3: Cross multiply
    1,721x = 3,706 × 3,706
  4. Step 4: Simplify right side
    1,721x = 13,734,436
  5. Step 5: Solve for x
    x = 13,734,436/1,721
  6. Step 6: Final answer
    x = 7,980.50

Related Problems

Find third proportional to 860.50 and 1,853
Half scale
Find third proportional to 3,442 and 7,412
Double scale
Find third proportional to 1,723 and 3,710
Similar ratio
Find third proportional to 2,581.50 and 5,559
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.