Home / 4,905-7,578

Finding the Third Proportional to 4,905 and 7,578

Calculator

Solution

The third proportional to 4,905 and 7,578 is: 11,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905 : 7,578 = 7,578 : x
  2. Step 2: Convert to fraction form
    4,905/7,578 = 7,578/x
  3. Step 3: Cross multiply
    4,905x = 7,578 × 7,578
  4. Step 4: Simplify right side
    4,905x = 57,426,084
  5. Step 5: Solve for x
    x = 57,426,084/4,905
  6. Step 6: Final answer
    x = 11,707.66

Related Problems

Find third proportional to 2,452.50 and 3,789
Half scale
Find third proportional to 9,810 and 15,156
Double scale
Find third proportional to 4,907 and 7,581
Similar ratio
Find third proportional to 7,357.50 and 11,367
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.