Home / 928.88-1,389.75

Finding the Third Proportional to 928.88 and 1,389.75

Calculator

Solution

The third proportional to 928.88 and 1,389.75 is: 2,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    928.88 : 1,389.75 = 1,389.75 : x
  2. Step 2: Convert to fraction form
    928.88/1,389.75 = 1,389.75/x
  3. Step 3: Cross multiply
    928.88x = 1,389.75 × 1,389.75
  4. Step 4: Simplify right side
    928.88x = 1,931,405.06
  5. Step 5: Solve for x
    x = 1,931,405.06/928.88
  6. Step 6: Final answer
    x = 2,079.29

Related Problems

Find third proportional to 464.44 and 694.88
Half scale
Find third proportional to 1,857.75 and 2,779.50
Double scale
Find third proportional to 931 and 1,393
Similar ratio
Find third proportional to 1,393.31 and 2,084.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.