Home / 917.06-1,980.19

Finding the Third Proportional to 917.06 and 1,980.19

Calculator

Solution

The third proportional to 917.06 and 1,980.19 is: 4,275.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    917.06 : 1,980.19 = 1,980.19 : x
  2. Step 2: Convert to fraction form
    917.06/1,980.19 = 1,980.19/x
  3. Step 3: Cross multiply
    917.06x = 1,980.19 × 1,980.19
  4. Step 4: Simplify right side
    917.06x = 3,921,142.54
  5. Step 5: Solve for x
    x = 3,921,142.54/917.06
  6. Step 6: Final answer
    x = 4,275.76

Related Problems

Find third proportional to 458.53 and 990.09
Half scale
Find third proportional to 1,834.13 and 3,960.38
Double scale
Find third proportional to 919 and 1,985
Similar ratio
Find third proportional to 1,375.59 and 2,970.28
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.