Home / 1,090.33-1,634.97-440.57

Finding the Fourth Proportional to 1,090.33, 1,634.97 and 440.57

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Solution

The fourth proportional to 1,090.33, 1,634.97 and 440.57 is: 660.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.33 : 1,634.97 = 440.57 : x
  2. Step 2: Convert to fraction form
    1,090.33/1,634.97 = 440.57/x
  3. Step 3: Cross multiply
    1,090.33x = 1,634.97 × 440.57
  4. Step 4: Simplify right side
    1,090.33x = 720,318.73
  5. Step 5: Solve for x
    x = 720,318.73/1,090.33
  6. Step 6: Final answer
    x = 660.64

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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.