Home / 940-1,428

Finding the Third Proportional to 940 and 1,428

Calculator

Solution

The third proportional to 940 and 1,428 is: 2,169.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    940 : 1,428 = 1,428 : x
  2. Step 2: Convert to fraction form
    940/1,428 = 1,428/x
  3. Step 3: Cross multiply
    940x = 1,428 × 1,428
  4. Step 4: Simplify right side
    940x = 2,039,184
  5. Step 5: Solve for x
    x = 2,039,184/940
  6. Step 6: Final answer
    x = 2,169.34

Related Problems

Find third proportional to 470 and 714
Half scale
Find third proportional to 1,880 and 2,856
Double scale
Find third proportional to 942 and 1,431
Similar ratio
Find third proportional to 1,410 and 2,142
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.