Home / 1,843.66-2,541.54-1,318.78

Finding the Fourth Proportional to 1,843.66, 2,541.54 and 1,318.78

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Solution

The fourth proportional to 1,843.66, 2,541.54 and 1,318.78 is: 1,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.66 : 2,541.54 = 1,318.78 : x
  2. Step 2: Convert to fraction form
    1,843.66/2,541.54 = 1,318.78/x
  3. Step 3: Cross multiply
    1,843.66x = 2,541.54 × 1,318.78
  4. Step 4: Simplify right side
    1,843.66x = 3,351,732.12
  5. Step 5: Solve for x
    x = 3,351,732.12/1,843.66
  6. Step 6: Final answer
    x = 1,817.98

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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.