Home / 902.45-1,353.68-253.19

Finding the Fourth Proportional to 902.45, 1,353.68 and 253.19

Calculator

Solution

The fourth proportional to 902.45, 1,353.68 and 253.19 is: 379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    902.45 : 1,353.68 = 253.19 : x
  2. Step 2: Convert to fraction form
    902.45/1,353.68 = 253.19/x
  3. Step 3: Cross multiply
    902.45x = 1,353.68 × 253.19
  4. Step 4: Simplify right side
    902.45x = 342,730.20
  5. Step 5: Solve for x
    x = 342,730.20/902.45
  6. Step 6: Final answer
    x = 379.78

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.