Home / 1,645-3,494

Finding the Third Proportional to 1,645 and 3,494

Calculator

Solution

The third proportional to 1,645 and 3,494 is: 7,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645 : 3,494 = 3,494 : x
  2. Step 2: Convert to fraction form
    1,645/3,494 = 3,494/x
  3. Step 3: Cross multiply
    1,645x = 3,494 × 3,494
  4. Step 4: Simplify right side
    1,645x = 12,208,036
  5. Step 5: Solve for x
    x = 12,208,036/1,645
  6. Step 6: Final answer
    x = 7,421.30

Related Problems

Find third proportional to 822.50 and 1,747
Half scale
Find third proportional to 3,290 and 6,988
Double scale
Find third proportional to 1,647 and 3,498
Similar ratio
Find third proportional to 2,467.50 and 5,241
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.