Home / 1,490.44-2,057.22-869.56

Finding the Fourth Proportional to 1,490.44, 2,057.22 and 869.56

Calculator

Solution

The fourth proportional to 1,490.44, 2,057.22 and 869.56 is: 1,200.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490.44 : 2,057.22 = 869.56 : x
  2. Step 2: Convert to fraction form
    1,490.44/2,057.22 = 869.56/x
  3. Step 3: Cross multiply
    1,490.44x = 2,057.22 × 869.56
  4. Step 4: Simplify right side
    1,490.44x = 1,788,876.22
  5. Step 5: Solve for x
    x = 1,788,876.22/1,490.44
  6. Step 6: Final answer
    x = 1,200.23

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.