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Finding the Fourth Proportional to 1,828.31, 2,737.79 and 1,005.68

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Solution

The fourth proportional to 1,828.31, 2,737.79 and 1,005.68 is: 1,505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.31 : 2,737.79 = 1,005.68 : x
  2. Step 2: Convert to fraction form
    1,828.31/2,737.79 = 1,005.68/x
  3. Step 3: Cross multiply
    1,828.31x = 2,737.79 × 1,005.68
  4. Step 4: Simplify right side
    1,828.31x = 2,753,346.23
  5. Step 5: Solve for x
    x = 2,753,346.23/1,828.31
  6. Step 6: Final answer
    x = 1,505.96

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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.