Home / 2,631.10-3,944.82-1,243.66

Finding the Fourth Proportional to 2,631.10, 3,944.82 and 1,243.66

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Solution

The fourth proportional to 2,631.10, 3,944.82 and 1,243.66 is: 1,864.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.10 : 3,944.82 = 1,243.66 : x
  2. Step 2: Convert to fraction form
    2,631.10/3,944.82 = 1,243.66/x
  3. Step 3: Cross multiply
    2,631.10x = 3,944.82 × 1,243.66
  4. Step 4: Simplify right side
    2,631.10x = 4,906,014.84
  5. Step 5: Solve for x
    x = 4,906,014.84/2,631.10
  6. Step 6: Final answer
    x = 1,864.63

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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.