Home / 3,721-5,290

Finding the Third Proportional to 3,721 and 5,290

Calculator

Solution

The third proportional to 3,721 and 5,290 is: 7,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721 : 5,290 = 5,290 : x
  2. Step 2: Convert to fraction form
    3,721/5,290 = 5,290/x
  3. Step 3: Cross multiply
    3,721x = 5,290 × 5,290
  4. Step 4: Simplify right side
    3,721x = 27,984,100
  5. Step 5: Solve for x
    x = 27,984,100/3,721
  6. Step 6: Final answer
    x = 7,520.59

Related Problems

Find third proportional to 1,860.50 and 2,645
Half scale
Find third proportional to 7,442 and 10,580
Double scale
Find third proportional to 3,723 and 5,293
Similar ratio
Find third proportional to 5,581.50 and 7,935
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.