Home / 1,788.06-2,682.10-489.72

Finding the Fourth Proportional to 1,788.06, 2,682.10 and 489.72

Calculator

Solution

The fourth proportional to 1,788.06, 2,682.10 and 489.72 is: 734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.06 : 2,682.10 = 489.72 : x
  2. Step 2: Convert to fraction form
    1,788.06/2,682.10 = 489.72/x
  3. Step 3: Cross multiply
    1,788.06x = 2,682.10 × 489.72
  4. Step 4: Simplify right side
    1,788.06x = 1,313,478.01
  5. Step 5: Solve for x
    x = 1,313,478.01/1,788.06
  6. Step 6: Final answer
    x = 734.58

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.