Home / 397.28-591.85-392.96

Finding the Fourth Proportional to 397.28, 591.85 and 392.96

Calculator

Solution

The fourth proportional to 397.28, 591.85 and 392.96 is: 585.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    397.28 : 591.85 = 392.96 : x
  2. Step 2: Convert to fraction form
    397.28/591.85 = 392.96/x
  3. Step 3: Cross multiply
    397.28x = 591.85 × 392.96
  4. Step 4: Simplify right side
    397.28x = 232,573.38
  5. Step 5: Solve for x
    x = 232,573.38/397.28
  6. Step 6: Final answer
    x = 585.41

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.