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Finding the Fourth Proportional to 1,828.52, 2,743.68 and 854.69

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Solution

The fourth proportional to 1,828.52, 2,743.68 and 854.69 is: 1,282.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.52 : 2,743.68 = 854.69 : x
  2. Step 2: Convert to fraction form
    1,828.52/2,743.68 = 854.69/x
  3. Step 3: Cross multiply
    1,828.52x = 2,743.68 × 854.69
  4. Step 4: Simplify right side
    1,828.52x = 2,344,995.86
  5. Step 5: Solve for x
    x = 2,344,995.86/1,828.52
  6. Step 6: Final answer
    x = 1,282.46

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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.