Home / 3,186.12-4,779.06-877.56

Finding the Fourth Proportional to 3,186.12, 4,779.06 and 877.56

Calculator

Solution

The fourth proportional to 3,186.12, 4,779.06 and 877.56 is: 1,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.12 : 4,779.06 = 877.56 : x
  2. Step 2: Convert to fraction form
    3,186.12/4,779.06 = 877.56/x
  3. Step 3: Cross multiply
    3,186.12x = 4,779.06 × 877.56
  4. Step 4: Simplify right side
    3,186.12x = 4,193,911.89
  5. Step 5: Solve for x
    x = 4,193,911.89/3,186.12
  6. Step 6: Final answer
    x = 1,316.31

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.