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Finding the Fourth Proportional to 1,546.75, 2,134.61 and 883.81

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Solution

The fourth proportional to 1,546.75, 2,134.61 and 883.81 is: 1,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.75 : 2,134.61 = 883.81 : x
  2. Step 2: Convert to fraction form
    1,546.75/2,134.61 = 883.81/x
  3. Step 3: Cross multiply
    1,546.75x = 2,134.61 × 883.81
  4. Step 4: Simplify right side
    1,546.75x = 1,886,589.66
  5. Step 5: Solve for x
    x = 1,886,589.66/1,546.75
  6. Step 6: Final answer
    x = 1,219.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.