Home / 531-1,105

Finding the Third Proportional to 531 and 1,105

Calculator

Solution

The third proportional to 531 and 1,105 is: 2,299.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531 : 1,105 = 1,105 : x
  2. Step 2: Convert to fraction form
    531/1,105 = 1,105/x
  3. Step 3: Cross multiply
    531x = 1,105 × 1,105
  4. Step 4: Simplify right side
    531x = 1,221,025
  5. Step 5: Solve for x
    x = 1,221,025/531
  6. Step 6: Final answer
    x = 2,299.48

Related Problems

Find third proportional to 265.50 and 552.50
Half scale
Find third proportional to 1,062 and 2,210
Double scale
Find third proportional to 533 and 1,109
Similar ratio
Find third proportional to 796.50 and 1,657.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.