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Finding the Fourth Proportional to 3,576.76, 5,365.80 and 1,629.10

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Solution

The fourth proportional to 3,576.76, 5,365.80 and 1,629.10 is: 2,443.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.76 : 5,365.80 = 1,629.10 : x
  2. Step 2: Convert to fraction form
    3,576.76/5,365.80 = 1,629.10/x
  3. Step 3: Cross multiply
    3,576.76x = 5,365.80 × 1,629.10
  4. Step 4: Simplify right side
    3,576.76x = 8,741,424.78
  5. Step 5: Solve for x
    x = 8,741,424.78/3,576.76
  6. Step 6: Final answer
    x = 2,443.95

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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.