Home / 1,215-2,574

Finding the Third Proportional to 1,215 and 2,574

Calculator

Solution

The third proportional to 1,215 and 2,574 is: 5,453.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215 : 2,574 = 2,574 : x
  2. Step 2: Convert to fraction form
    1,215/2,574 = 2,574/x
  3. Step 3: Cross multiply
    1,215x = 2,574 × 2,574
  4. Step 4: Simplify right side
    1,215x = 6,625,476
  5. Step 5: Solve for x
    x = 6,625,476/1,215
  6. Step 6: Final answer
    x = 5,453.07

Related Problems

Find third proportional to 607.50 and 1,287
Half scale
Find third proportional to 2,430 and 5,148
Double scale
Find third proportional to 1,217 and 2,578
Similar ratio
Find third proportional to 1,822.50 and 3,861
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.