Home / 918-1,957.50

Finding the Third Proportional to 918 and 1,957.50

Calculator

Solution

The third proportional to 918 and 1,957.50 is: 4,174.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    918 : 1,957.50 = 1,957.50 : x
  2. Step 2: Convert to fraction form
    918/1,957.50 = 1,957.50/x
  3. Step 3: Cross multiply
    918x = 1,957.50 × 1,957.50
  4. Step 4: Simplify right side
    918x = 3,831,806.25
  5. Step 5: Solve for x
    x = 3,831,806.25/918
  6. Step 6: Final answer
    x = 4,174.08

Related Problems

Find third proportional to 459 and 978.75
Half scale
Find third proportional to 1,836 and 3,915
Double scale
Find third proportional to 920 and 1,962
Similar ratio
Find third proportional to 1,377 and 2,936.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.