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Finding the Fourth Proportional to 3,957.05, 5,930.10 and 3,368.99

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Solution

The fourth proportional to 3,957.05, 5,930.10 and 3,368.99 is: 5,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.05 : 5,930.10 = 3,368.99 : x
  2. Step 2: Convert to fraction form
    3,957.05/5,930.10 = 3,368.99/x
  3. Step 3: Cross multiply
    3,957.05x = 5,930.10 × 3,368.99
  4. Step 4: Simplify right side
    3,957.05x = 19,978,447.60
  5. Step 5: Solve for x
    x = 19,978,447.60/3,957.05
  6. Step 6: Final answer
    x = 5,048.82

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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.