Home / 1,430-2,175

Finding the Third Proportional to 1,430 and 2,175

Calculator

Solution

The third proportional to 1,430 and 2,175 is: 3,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430 : 2,175 = 2,175 : x
  2. Step 2: Convert to fraction form
    1,430/2,175 = 2,175/x
  3. Step 3: Cross multiply
    1,430x = 2,175 × 2,175
  4. Step 4: Simplify right side
    1,430x = 4,730,625
  5. Step 5: Solve for x
    x = 4,730,625/1,430
  6. Step 6: Final answer
    x = 3,308.13

Related Problems

Find third proportional to 715 and 1,087.50
Half scale
Find third proportional to 2,860 and 4,350
Double scale
Find third proportional to 1,432 and 2,178
Similar ratio
Find third proportional to 2,145 and 3,262.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.