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Finding the Fourth Proportional to 1,936.59, 2,904.27 and 637.75

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Solution

The fourth proportional to 1,936.59, 2,904.27 and 637.75 is: 956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.59 : 2,904.27 = 637.75 : x
  2. Step 2: Convert to fraction form
    1,936.59/2,904.27 = 637.75/x
  3. Step 3: Cross multiply
    1,936.59x = 2,904.27 × 637.75
  4. Step 4: Simplify right side
    1,936.59x = 1,852,198.19
  5. Step 5: Solve for x
    x = 1,852,198.19/1,936.59
  6. Step 6: Final answer
    x = 956.42

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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.