Home / 979.65-2,137.80

Finding the Third Proportional to 979.65 and 2,137.80

Calculator

Solution

The third proportional to 979.65 and 2,137.80 is: 4,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    979.65 : 2,137.80 = 2,137.80 : x
  2. Step 2: Convert to fraction form
    979.65/2,137.80 = 2,137.80/x
  3. Step 3: Cross multiply
    979.65x = 2,137.80 × 2,137.80
  4. Step 4: Simplify right side
    979.65x = 4,570,183.83
  5. Step 5: Solve for x
    x = 4,570,183.83/979.65
  6. Step 6: Final answer
    x = 4,665.14

Related Problems

Find third proportional to 489.82 and 1,068.90
Half scale
Find third proportional to 1,959.29 and 4,275.60
Double scale
Find third proportional to 982 and 2,142
Similar ratio
Find third proportional to 1,469.47 and 3,206.70
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.