Home / 1,392-3,072

Finding the Third Proportional to 1,392 and 3,072

Calculator

Solution

The third proportional to 1,392 and 3,072 is: 6,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392 : 3,072 = 3,072 : x
  2. Step 2: Convert to fraction form
    1,392/3,072 = 3,072/x
  3. Step 3: Cross multiply
    1,392x = 3,072 × 3,072
  4. Step 4: Simplify right side
    1,392x = 9,437,184
  5. Step 5: Solve for x
    x = 9,437,184/1,392
  6. Step 6: Final answer
    x = 6,779.59

Related Problems

Find third proportional to 696 and 1,536
Half scale
Find third proportional to 2,784 and 6,144
Double scale
Find third proportional to 1,394 and 3,076
Similar ratio
Find third proportional to 2,088 and 4,608
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.