Home / 1,089-1,576

Finding the Third Proportional to 1,089 and 1,576

Calculator

Solution

The third proportional to 1,089 and 1,576 is: 2,280.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089 : 1,576 = 1,576 : x
  2. Step 2: Convert to fraction form
    1,089/1,576 = 1,576/x
  3. Step 3: Cross multiply
    1,089x = 1,576 × 1,576
  4. Step 4: Simplify right side
    1,089x = 2,483,776
  5. Step 5: Solve for x
    x = 2,483,776/1,089
  6. Step 6: Final answer
    x = 2,280.79

Related Problems

Find third proportional to 544.50 and 788
Half scale
Find third proportional to 2,178 and 3,152
Double scale
Find third proportional to 1,091 and 1,579
Similar ratio
Find third proportional to 1,633.50 and 2,364
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.