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Finding the Fourth Proportional to 3,053.38, 4,236.72 and 2,930

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Solution

The fourth proportional to 3,053.38, 4,236.72 and 2,930 is: 4,065.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,053.38 : 4,236.72 = 2,930 : x
  2. Step 2: Convert to fraction form
    3,053.38/4,236.72 = 2,930/x
  3. Step 3: Cross multiply
    3,053.38x = 4,236.72 × 2,930
  4. Step 4: Simplify right side
    3,053.38x = 12,413,589.60
  5. Step 5: Solve for x
    x = 12,413,589.60/3,053.38
  6. Step 6: Final answer
    x = 4,065.52

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.