Home / 1,327.24-1,989.36-633.34

Finding the Fourth Proportional to 1,327.24, 1,989.36 and 633.34

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Solution

The fourth proportional to 1,327.24, 1,989.36 and 633.34 is: 949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327.24 : 1,989.36 = 633.34 : x
  2. Step 2: Convert to fraction form
    1,327.24/1,989.36 = 633.34/x
  3. Step 3: Cross multiply
    1,327.24x = 1,989.36 × 633.34
  4. Step 4: Simplify right side
    1,327.24x = 1,259,941.26
  5. Step 5: Solve for x
    x = 1,259,941.26/1,327.24
  6. Step 6: Final answer
    x = 949.29

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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.