Home / 1,411.73-2,117.57-545.43

Finding the Fourth Proportional to 1,411.73, 2,117.57 and 545.43

Calculator

Solution

The fourth proportional to 1,411.73, 2,117.57 and 545.43 is: 818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.73 : 2,117.57 = 545.43 : x
  2. Step 2: Convert to fraction form
    1,411.73/2,117.57 = 545.43/x
  3. Step 3: Cross multiply
    1,411.73x = 2,117.57 × 545.43
  4. Step 4: Simplify right side
    1,411.73x = 1,154,983.48
  5. Step 5: Solve for x
    x = 1,154,983.48/1,411.73
  6. Step 6: Final answer
    x = 818.14

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.