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Finding the Fourth Proportional to 2,681.63, 4,022.85 and 950.12

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Solution

The fourth proportional to 2,681.63, 4,022.85 and 950.12 is: 1,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.63 : 4,022.85 = 950.12 : x
  2. Step 2: Convert to fraction form
    2,681.63/4,022.85 = 950.12/x
  3. Step 3: Cross multiply
    2,681.63x = 4,022.85 × 950.12
  4. Step 4: Simplify right side
    2,681.63x = 3,822,190.24
  5. Step 5: Solve for x
    x = 3,822,190.24/2,681.63
  6. Step 6: Final answer
    x = 1,425.32

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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.