Home / 1,040-1,491

Finding the Third Proportional to 1,040 and 1,491

Calculator

Solution

The third proportional to 1,040 and 1,491 is: 2,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040 : 1,491 = 1,491 : x
  2. Step 2: Convert to fraction form
    1,040/1,491 = 1,491/x
  3. Step 3: Cross multiply
    1,040x = 1,491 × 1,491
  4. Step 4: Simplify right side
    1,040x = 2,223,081
  5. Step 5: Solve for x
    x = 2,223,081/1,040
  6. Step 6: Final answer
    x = 2,137.58

Related Problems

Find third proportional to 520 and 745.50
Half scale
Find third proportional to 2,080 and 2,982
Double scale
Find third proportional to 1,042 and 1,494
Similar ratio
Find third proportional to 1,560 and 2,236.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.