Home / 3,178-4,972.50

Finding the Third Proportional to 3,178 and 4,972.50

Calculator

Solution

The third proportional to 3,178 and 4,972.50 is: 7,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178 : 4,972.50 = 4,972.50 : x
  2. Step 2: Convert to fraction form
    3,178/4,972.50 = 4,972.50/x
  3. Step 3: Cross multiply
    3,178x = 4,972.50 × 4,972.50
  4. Step 4: Simplify right side
    3,178x = 24,725,756.25
  5. Step 5: Solve for x
    x = 24,725,756.25/3,178
  6. Step 6: Final answer
    x = 7,780.29

Related Problems

Find third proportional to 1,589 and 2,486.25
Half scale
Find third proportional to 6,356 and 9,945
Double scale
Find third proportional to 3,180 and 4,976
Similar ratio
Find third proportional to 4,767 and 7,458.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.