Home / 1,948.48-2,921.82-649.60

Finding the Fourth Proportional to 1,948.48, 2,921.82 and 649.60

Calculator

Solution

The fourth proportional to 1,948.48, 2,921.82 and 649.60 is: 974.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.48 : 2,921.82 = 649.60 : x
  2. Step 2: Convert to fraction form
    1,948.48/2,921.82 = 649.60/x
  3. Step 3: Cross multiply
    1,948.48x = 2,921.82 × 649.60
  4. Step 4: Simplify right side
    1,948.48x = 1,898,014.27
  5. Step 5: Solve for x
    x = 1,898,014.27/1,948.48
  6. Step 6: Final answer
    x = 974.10

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.