Home / 1,270-2,783

Finding the Third Proportional to 1,270 and 2,783

Calculator

Solution

The third proportional to 1,270 and 2,783 is: 6,098.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270 : 2,783 = 2,783 : x
  2. Step 2: Convert to fraction form
    1,270/2,783 = 2,783/x
  3. Step 3: Cross multiply
    1,270x = 2,783 × 2,783
  4. Step 4: Simplify right side
    1,270x = 7,745,089
  5. Step 5: Solve for x
    x = 7,745,089/1,270
  6. Step 6: Final answer
    x = 6,098.50

Related Problems

Find third proportional to 635 and 1,391.50
Half scale
Find third proportional to 2,540 and 5,566
Double scale
Find third proportional to 1,272 and 2,787
Similar ratio
Find third proportional to 1,905 and 4,174.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.