Home / 755.63-1,398.75

Finding the Third Proportional to 755.63 and 1,398.75

Calculator

Solution

The third proportional to 755.63 and 1,398.75 is: 2,589.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.63 : 1,398.75 = 1,398.75 : x
  2. Step 2: Convert to fraction form
    755.63/1,398.75 = 1,398.75/x
  3. Step 3: Cross multiply
    755.63x = 1,398.75 × 1,398.75
  4. Step 4: Simplify right side
    755.63x = 1,956,501.56
  5. Step 5: Solve for x
    x = 1,956,501.56/755.63
  6. Step 6: Final answer
    x = 2,589.25

Related Problems

Find third proportional to 377.81 and 699.38
Half scale
Find third proportional to 1,511.25 and 2,797.50
Double scale
Find third proportional to 758 and 1,402
Similar ratio
Find third proportional to 1,133.44 and 2,098.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.