Home / 1,270.54-1,906.02-392.84

Finding the Fourth Proportional to 1,270.54, 1,906.02 and 392.84

Calculator

Solution

The fourth proportional to 1,270.54, 1,906.02 and 392.84 is: 589.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.54 : 1,906.02 = 392.84 : x
  2. Step 2: Convert to fraction form
    1,270.54/1,906.02 = 392.84/x
  3. Step 3: Cross multiply
    1,270.54x = 1,906.02 × 392.84
  4. Step 4: Simplify right side
    1,270.54x = 748,749.40
  5. Step 5: Solve for x
    x = 748,749.40/1,270.54
  6. Step 6: Final answer
    x = 589.32

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.