Home / 2,479.84-3,719.52-748.48

Finding the Fourth Proportional to 2,479.84, 3,719.52 and 748.48

Calculator

Solution

The fourth proportional to 2,479.84, 3,719.52 and 748.48 is: 1,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.84 : 3,719.52 = 748.48 : x
  2. Step 2: Convert to fraction form
    2,479.84/3,719.52 = 748.48/x
  3. Step 3: Cross multiply
    2,479.84x = 3,719.52 × 748.48
  4. Step 4: Simplify right side
    2,479.84x = 2,783,986.33
  5. Step 5: Solve for x
    x = 2,783,986.33/2,479.84
  6. Step 6: Final answer
    x = 1,122.65

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.