Home / 979-1,612.50

Finding the Third Proportional to 979 and 1,612.50

Calculator

Solution

The third proportional to 979 and 1,612.50 is: 2,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    979 : 1,612.50 = 1,612.50 : x
  2. Step 2: Convert to fraction form
    979/1,612.50 = 1,612.50/x
  3. Step 3: Cross multiply
    979x = 1,612.50 × 1,612.50
  4. Step 4: Simplify right side
    979x = 2,600,156.25
  5. Step 5: Solve for x
    x = 2,600,156.25/979
  6. Step 6: Final answer
    x = 2,655.93

Related Problems

Find third proportional to 489.50 and 806.25
Half scale
Find third proportional to 1,958 and 3,225
Double scale
Find third proportional to 981 and 1,616
Similar ratio
Find third proportional to 1,468.50 and 2,418.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.