Home / 703-1,489

Finding the Third Proportional to 703 and 1,489

Calculator

Solution

The third proportional to 703 and 1,489 is: 3,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    703 : 1,489 = 1,489 : x
  2. Step 2: Convert to fraction form
    703/1,489 = 1,489/x
  3. Step 3: Cross multiply
    703x = 1,489 × 1,489
  4. Step 4: Simplify right side
    703x = 2,217,121
  5. Step 5: Solve for x
    x = 2,217,121/703
  6. Step 6: Final answer
    x = 3,153.80

Related Problems

Find third proportional to 351.50 and 744.50
Half scale
Find third proportional to 1,406 and 2,978
Double scale
Find third proportional to 705 and 1,493
Similar ratio
Find third proportional to 1,054.50 and 2,233.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.