Home / 1,543.50-2,205

Finding the Third Proportional to 1,543.50 and 2,205

Calculator

Solution

The third proportional to 1,543.50 and 2,205 is: 3,150

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543.50 : 2,205 = 2,205 : x
  2. Step 2: Convert to fraction form
    1,543.50/2,205 = 2,205/x
  3. Step 3: Cross multiply
    1,543.50x = 2,205 × 2,205
  4. Step 4: Simplify right side
    1,543.50x = 4,862,025
  5. Step 5: Solve for x
    x = 4,862,025/1,543.50
  6. Step 6: Final answer
    x = 3,150

Related Problems

Find third proportional to 771.75 and 1,102.50
Half scale
Find third proportional to 3,087 and 4,410
Double scale
Find third proportional to 1,546 and 2,208
Similar ratio
Find third proportional to 2,315.25 and 3,307.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.