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Finding the Fourth Proportional to 2,630.78, 3,631.78 and 2,062.62

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Solution

The fourth proportional to 2,630.78, 3,631.78 and 2,062.62 is: 2,847.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.78 : 3,631.78 = 2,062.62 : x
  2. Step 2: Convert to fraction form
    2,630.78/3,631.78 = 2,062.62/x
  3. Step 3: Cross multiply
    2,630.78x = 3,631.78 × 2,062.62
  4. Step 4: Simplify right side
    2,630.78x = 7,490,963.29
  5. Step 5: Solve for x
    x = 7,490,963.29/2,630.78
  6. Step 6: Final answer
    x = 2,847.43

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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.