Home / 1,946.15-2,919.24-647.61

Finding the Fourth Proportional to 1,946.15, 2,919.24 and 647.61

Calculator

Solution

The fourth proportional to 1,946.15, 2,919.24 and 647.61 is: 971.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.15 : 2,919.24 = 647.61 : x
  2. Step 2: Convert to fraction form
    1,946.15/2,919.24 = 647.61/x
  3. Step 3: Cross multiply
    1,946.15x = 2,919.24 × 647.61
  4. Step 4: Simplify right side
    1,946.15x = 1,890,525.78
  5. Step 5: Solve for x
    x = 1,890,525.78/1,946.15
  6. Step 6: Final answer
    x = 971.42

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.