Home / 682.64-942.06-387.95

Finding the Fourth Proportional to 682.64, 942.06 and 387.95

Calculator

Solution

The fourth proportional to 682.64, 942.06 and 387.95 is: 535.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.64 : 942.06 = 387.95 : x
  2. Step 2: Convert to fraction form
    682.64/942.06 = 387.95/x
  3. Step 3: Cross multiply
    682.64x = 942.06 × 387.95
  4. Step 4: Simplify right side
    682.64x = 365,472.18
  5. Step 5: Solve for x
    x = 365,472.18/682.64
  6. Step 6: Final answer
    x = 535.38

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.