Home / 2,391.21-3,584.43-1,005.48

Finding the Fourth Proportional to 2,391.21, 3,584.43 and 1,005.48

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Solution

The fourth proportional to 2,391.21, 3,584.43 and 1,005.48 is: 1,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.21 : 3,584.43 = 1,005.48 : x
  2. Step 2: Convert to fraction form
    2,391.21/3,584.43 = 1,005.48/x
  3. Step 3: Cross multiply
    2,391.21x = 3,584.43 × 1,005.48
  4. Step 4: Simplify right side
    2,391.21x = 3,604,072.68
  5. Step 5: Solve for x
    x = 3,604,072.68/2,391.21
  6. Step 6: Final answer
    x = 1,507.22

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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.