Home / 740-791

Finding the Third Proportional to 740 and 791

Calculator

Solution

The third proportional to 740 and 791 is: 845.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    740 : 791 = 791 : x
  2. Step 2: Convert to fraction form
    740/791 = 791/x
  3. Step 3: Cross multiply
    740x = 791 × 791
  4. Step 4: Simplify right side
    740x = 625,681
  5. Step 5: Solve for x
    x = 625,681/740
  6. Step 6: Final answer
    x = 845.51

Related Problems

Find third proportional to 370 and 395.50
Half scale
Find third proportional to 1,480 and 1,582
Double scale
Find third proportional to 742 and 793
Similar ratio
Find third proportional to 1,110 and 1,186.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.