Home / 1,937.43-2,906.13-638.90

Finding the Fourth Proportional to 1,937.43, 2,906.13 and 638.90

Calculator

Solution

The fourth proportional to 1,937.43, 2,906.13 and 638.90 is: 958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.43 : 2,906.13 = 638.90 : x
  2. Step 2: Convert to fraction form
    1,937.43/2,906.13 = 638.90/x
  3. Step 3: Cross multiply
    1,937.43x = 2,906.13 × 638.90
  4. Step 4: Simplify right side
    1,937.43x = 1,856,711.93
  5. Step 5: Solve for x
    x = 1,856,711.93/1,937.43
  6. Step 6: Final answer
    x = 958.34

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.