Home / 517.12-775.95-343.87

Finding the Fourth Proportional to 517.12, 775.95 and 343.87

Calculator

Solution

The fourth proportional to 517.12, 775.95 and 343.87 is: 515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    517.12 : 775.95 = 343.87 : x
  2. Step 2: Convert to fraction form
    517.12/775.95 = 343.87/x
  3. Step 3: Cross multiply
    517.12x = 775.95 × 343.87
  4. Step 4: Simplify right side
    517.12x = 266,825.93
  5. Step 5: Solve for x
    x = 266,825.93/517.12
  6. Step 6: Final answer
    x = 515.98

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.