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Finding the Fourth Proportional to 3,936.69, 5,903.78 and 1,597.28

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Solution

The fourth proportional to 3,936.69, 5,903.78 and 1,597.28 is: 2,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.69 : 5,903.78 = 1,597.28 : x
  2. Step 2: Convert to fraction form
    3,936.69/5,903.78 = 1,597.28/x
  3. Step 3: Cross multiply
    3,936.69x = 5,903.78 × 1,597.28
  4. Step 4: Simplify right side
    3,936.69x = 9,429,952.21
  5. Step 5: Solve for x
    x = 9,429,952.21/3,936.69
  6. Step 6: Final answer
    x = 2,395.40

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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.