Home / 705.75-1,485

Finding the Third Proportional to 705.75 and 1,485

Calculator

Solution

The third proportional to 705.75 and 1,485 is: 3,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.75 : 1,485 = 1,485 : x
  2. Step 2: Convert to fraction form
    705.75/1,485 = 1,485/x
  3. Step 3: Cross multiply
    705.75x = 1,485 × 1,485
  4. Step 4: Simplify right side
    705.75x = 2,205,225
  5. Step 5: Solve for x
    x = 2,205,225/705.75
  6. Step 6: Final answer
    x = 3,124.65

Related Problems

Find third proportional to 352.88 and 742.50
Half scale
Find third proportional to 1,411.50 and 2,970
Double scale
Find third proportional to 708 and 1,489
Similar ratio
Find third proportional to 1,058.63 and 2,227.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.