Home / 739.50-1,620

Finding the Third Proportional to 739.50 and 1,620

Calculator

Solution

The third proportional to 739.50 and 1,620 is: 3,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.50 : 1,620 = 1,620 : x
  2. Step 2: Convert to fraction form
    739.50/1,620 = 1,620/x
  3. Step 3: Cross multiply
    739.50x = 1,620 × 1,620
  4. Step 4: Simplify right side
    739.50x = 2,624,400
  5. Step 5: Solve for x
    x = 2,624,400/739.50
  6. Step 6: Final answer
    x = 3,548.88

Related Problems

Find third proportional to 369.75 and 810
Half scale
Find third proportional to 1,479 and 3,240
Double scale
Find third proportional to 742 and 1,624
Similar ratio
Find third proportional to 1,109.25 and 2,430
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.