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Finding the Fourth Proportional to 1,903.68, 2,844 and 1,892.88

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Solution

The fourth proportional to 1,903.68, 2,844 and 1,892.88 is: 2,827.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.68 : 2,844 = 1,892.88 : x
  2. Step 2: Convert to fraction form
    1,903.68/2,844 = 1,892.88/x
  3. Step 3: Cross multiply
    1,903.68x = 2,844 × 1,892.88
  4. Step 4: Simplify right side
    1,903.68x = 5,383,350.72
  5. Step 5: Solve for x
    x = 5,383,350.72/1,903.68
  6. Step 6: Final answer
    x = 2,827.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.