Home / 1,345-1,785

Finding the Third Proportional to 1,345 and 1,785

Calculator

Solution

The third proportional to 1,345 and 1,785 is: 2,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345 : 1,785 = 1,785 : x
  2. Step 2: Convert to fraction form
    1,345/1,785 = 1,785/x
  3. Step 3: Cross multiply
    1,345x = 1,785 × 1,785
  4. Step 4: Simplify right side
    1,345x = 3,186,225
  5. Step 5: Solve for x
    x = 3,186,225/1,345
  6. Step 6: Final answer
    x = 2,368.94

Related Problems

Find third proportional to 672.50 and 892.50
Half scale
Find third proportional to 2,690 and 3,570
Double scale
Find third proportional to 1,347 and 1,788
Similar ratio
Find third proportional to 2,017.50 and 2,677.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.