Home / 850-1,312.50

Finding the Third Proportional to 850 and 1,312.50

Calculator

Solution

The third proportional to 850 and 1,312.50 is: 2,026.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    850 : 1,312.50 = 1,312.50 : x
  2. Step 2: Convert to fraction form
    850/1,312.50 = 1,312.50/x
  3. Step 3: Cross multiply
    850x = 1,312.50 × 1,312.50
  4. Step 4: Simplify right side
    850x = 1,722,656.25
  5. Step 5: Solve for x
    x = 1,722,656.25/850
  6. Step 6: Final answer
    x = 2,026.65

Related Problems

Find third proportional to 425 and 656.25
Half scale
Find third proportional to 1,700 and 2,625
Double scale
Find third proportional to 852 and 1,316
Similar ratio
Find third proportional to 1,275 and 1,968.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.