Home / 636.12-877.80-374.13

Finding the Fourth Proportional to 636.12, 877.80 and 374.13

Calculator

Solution

The fourth proportional to 636.12, 877.80 and 374.13 is: 516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.12 : 877.80 = 374.13 : x
  2. Step 2: Convert to fraction form
    636.12/877.80 = 374.13/x
  3. Step 3: Cross multiply
    636.12x = 877.80 × 374.13
  4. Step 4: Simplify right side
    636.12x = 328,411.31
  5. Step 5: Solve for x
    x = 328,411.31/636.12
  6. Step 6: Final answer
    x = 516.27

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.