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Finding the Fourth Proportional to 3,953.44, 5,930.16 and 1,900

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Solution

The fourth proportional to 3,953.44, 5,930.16 and 1,900 is: 2,850

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.44 : 5,930.16 = 1,900 : x
  2. Step 2: Convert to fraction form
    3,953.44/5,930.16 = 1,900/x
  3. Step 3: Cross multiply
    3,953.44x = 5,930.16 × 1,900
  4. Step 4: Simplify right side
    3,953.44x = 11,267,304
  5. Step 5: Solve for x
    x = 11,267,304/3,953.44
  6. Step 6: Final answer
    x = 2,850

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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.