Home / 1,646.72-2,272.47-938.53

Finding the Fourth Proportional to 1,646.72, 2,272.47 and 938.53

Calculator

Solution

The fourth proportional to 1,646.72, 2,272.47 and 938.53 is: 1,295.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.72 : 2,272.47 = 938.53 : x
  2. Step 2: Convert to fraction form
    1,646.72/2,272.47 = 938.53/x
  3. Step 3: Cross multiply
    1,646.72x = 2,272.47 × 938.53
  4. Step 4: Simplify right side
    1,646.72x = 2,132,780.59
  5. Step 5: Solve for x
    x = 2,132,780.59/1,646.72
  6. Step 6: Final answer
    x = 1,295.17

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.