Home / 1,601.78-2,398.82-819.72

Finding the Fourth Proportional to 1,601.78, 2,398.82 and 819.72

Calculator

Solution

The fourth proportional to 1,601.78, 2,398.82 and 819.72 is: 1,227.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.78 : 2,398.82 = 819.72 : x
  2. Step 2: Convert to fraction form
    1,601.78/2,398.82 = 819.72/x
  3. Step 3: Cross multiply
    1,601.78x = 2,398.82 × 819.72
  4. Step 4: Simplify right side
    1,601.78x = 1,966,356.63
  5. Step 5: Solve for x
    x = 1,966,356.63/1,601.78
  6. Step 6: Final answer
    x = 1,227.61

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.