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Finding the Fourth Proportional to 1,936.12, 2,902.50 and 895.72

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Solution

The fourth proportional to 1,936.12, 2,902.50 and 895.72 is: 1,342.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.12 : 2,902.50 = 895.72 : x
  2. Step 2: Convert to fraction form
    1,936.12/2,902.50 = 895.72/x
  3. Step 3: Cross multiply
    1,936.12x = 2,902.50 × 895.72
  4. Step 4: Simplify right side
    1,936.12x = 2,599,827.30
  5. Step 5: Solve for x
    x = 2,599,827.30/1,936.12
  6. Step 6: Final answer
    x = 1,342.80

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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.