Home / 2,630.56-3,945.66-1,243.48

Finding the Fourth Proportional to 2,630.56, 3,945.66 and 1,243.48

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Solution

The fourth proportional to 2,630.56, 3,945.66 and 1,243.48 is: 1,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.56 : 3,945.66 = 1,243.48 : x
  2. Step 2: Convert to fraction form
    2,630.56/3,945.66 = 1,243.48/x
  3. Step 3: Cross multiply
    2,630.56x = 3,945.66 × 1,243.48
  4. Step 4: Simplify right side
    2,630.56x = 4,906,349.30
  5. Step 5: Solve for x
    x = 4,906,349.30/2,630.56
  6. Step 6: Final answer
    x = 1,865.13

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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.