Home / 2,421-5,280

Finding the Third Proportional to 2,421 and 5,280

Calculator

Solution

The third proportional to 2,421 and 5,280 is: 11,515.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421 : 5,280 = 5,280 : x
  2. Step 2: Convert to fraction form
    2,421/5,280 = 5,280/x
  3. Step 3: Cross multiply
    2,421x = 5,280 × 5,280
  4. Step 4: Simplify right side
    2,421x = 27,878,400
  5. Step 5: Solve for x
    x = 27,878,400/2,421
  6. Step 6: Final answer
    x = 11,515.24

Related Problems

Find third proportional to 1,210.50 and 2,640
Half scale
Find third proportional to 4,842 and 10,560
Double scale
Find third proportional to 2,423 and 5,284
Similar ratio
Find third proportional to 3,631.50 and 7,920
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.