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Finding the Fourth Proportional to 1,840.91, 2,540.41 and 1,001.61

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Solution

The fourth proportional to 1,840.91, 2,540.41 and 1,001.61 is: 1,382.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.91 : 2,540.41 = 1,001.61 : x
  2. Step 2: Convert to fraction form
    1,840.91/2,540.41 = 1,001.61/x
  3. Step 3: Cross multiply
    1,840.91x = 2,540.41 × 1,001.61
  4. Step 4: Simplify right side
    1,840.91x = 2,544,500.06
  5. Step 5: Solve for x
    x = 2,544,500.06/1,840.91
  6. Step 6: Final answer
    x = 1,382.20

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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.