Home / 655.50-1,386.75

Finding the Third Proportional to 655.50 and 1,386.75

Calculator

Solution

The third proportional to 655.50 and 1,386.75 is: 2,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.50 : 1,386.75 = 1,386.75 : x
  2. Step 2: Convert to fraction form
    655.50/1,386.75 = 1,386.75/x
  3. Step 3: Cross multiply
    655.50x = 1,386.75 × 1,386.75
  4. Step 4: Simplify right side
    655.50x = 1,923,075.56
  5. Step 5: Solve for x
    x = 1,923,075.56/655.50
  6. Step 6: Final answer
    x = 2,933.75

Related Problems

Find third proportional to 327.75 and 693.38
Half scale
Find third proportional to 1,311 and 2,773.50
Double scale
Find third proportional to 658 and 1,391
Similar ratio
Find third proportional to 983.25 and 2,080.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.