Home / 912.01-1,258.37-538.73

Finding the Fourth Proportional to 912.01, 1,258.37 and 538.73

Calculator

Solution

The fourth proportional to 912.01, 1,258.37 and 538.73 is: 743.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    912.01 : 1,258.37 = 538.73 : x
  2. Step 2: Convert to fraction form
    912.01/1,258.37 = 538.73/x
  3. Step 3: Cross multiply
    912.01x = 1,258.37 × 538.73
  4. Step 4: Simplify right side
    912.01x = 677,918.98
  5. Step 5: Solve for x
    x = 677,918.98/912.01
  6. Step 6: Final answer
    x = 743.33

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.