Home / 1,528-3,321

Finding the Third Proportional to 1,528 and 3,321

Calculator

Solution

The third proportional to 1,528 and 3,321 is: 7,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528 : 3,321 = 3,321 : x
  2. Step 2: Convert to fraction form
    1,528/3,321 = 3,321/x
  3. Step 3: Cross multiply
    1,528x = 3,321 × 3,321
  4. Step 4: Simplify right side
    1,528x = 11,029,041
  5. Step 5: Solve for x
    x = 11,029,041/1,528
  6. Step 6: Final answer
    x = 7,217.96

Related Problems

Find third proportional to 764 and 1,660.50
Half scale
Find third proportional to 3,056 and 6,642
Double scale
Find third proportional to 1,530 and 3,325
Similar ratio
Find third proportional to 2,292 and 4,981.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.