Home / 4,251-7,890

Finding the Third Proportional to 4,251 and 7,890

Calculator

Solution

The third proportional to 4,251 and 7,890 is: 14,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251 : 7,890 = 7,890 : x
  2. Step 2: Convert to fraction form
    4,251/7,890 = 7,890/x
  3. Step 3: Cross multiply
    4,251x = 7,890 × 7,890
  4. Step 4: Simplify right side
    4,251x = 62,252,100
  5. Step 5: Solve for x
    x = 62,252,100/4,251
  6. Step 6: Final answer
    x = 14,644.11

Related Problems

Find third proportional to 2,125.50 and 3,945
Half scale
Find third proportional to 8,502 and 15,780
Double scale
Find third proportional to 4,253 and 7,894
Similar ratio
Find third proportional to 6,376.50 and 11,835
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.