Home / 3,876.34-5,349.49-2,220.66

Finding the Fourth Proportional to 3,876.34, 5,349.49 and 2,220.66

Calculator

Solution

The fourth proportional to 3,876.34, 5,349.49 and 2,220.66 is: 3,064.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.34 : 5,349.49 = 2,220.66 : x
  2. Step 2: Convert to fraction form
    3,876.34/5,349.49 = 2,220.66/x
  3. Step 3: Cross multiply
    3,876.34x = 5,349.49 × 2,220.66
  4. Step 4: Simplify right side
    3,876.34x = 11,879,398.46
  5. Step 5: Solve for x
    x = 11,879,398.46/3,876.34
  6. Step 6: Final answer
    x = 3,064.59

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.