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Finding the Fourth Proportional to 2,930, 4,388.44 and 1,628.56

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Solution

The fourth proportional to 2,930, 4,388.44 and 1,628.56 is: 2,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930 : 4,388.44 = 1,628.56 : x
  2. Step 2: Convert to fraction form
    2,930/4,388.44 = 1,628.56/x
  3. Step 3: Cross multiply
    2,930x = 4,388.44 × 1,628.56
  4. Step 4: Simplify right side
    2,930x = 7,146,837.85
  5. Step 5: Solve for x
    x = 7,146,837.85/2,930
  6. Step 6: Final answer
    x = 2,439.19

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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.