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Finding the Fourth Proportional to 3,938.49, 5,907.63 and 1,597.88

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Solution

The fourth proportional to 3,938.49, 5,907.63 and 1,597.88 is: 2,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.49 : 5,907.63 = 1,597.88 : x
  2. Step 2: Convert to fraction form
    3,938.49/5,907.63 = 1,597.88/x
  3. Step 3: Cross multiply
    3,938.49x = 5,907.63 × 1,597.88
  4. Step 4: Simplify right side
    3,938.49x = 9,439,654.29
  5. Step 5: Solve for x
    x = 9,439,654.29/3,938.49
  6. Step 6: Final answer
    x = 2,396.77

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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.