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Finding the Fourth Proportional to 3,238, 4,857.36 and 1,046.64

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Solution

The fourth proportional to 3,238, 4,857.36 and 1,046.64 is: 1,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238 : 4,857.36 = 1,046.64 : x
  2. Step 2: Convert to fraction form
    3,238/4,857.36 = 1,046.64/x
  3. Step 3: Cross multiply
    3,238x = 4,857.36 × 1,046.64
  4. Step 4: Simplify right side
    3,238x = 5,083,907.27
  5. Step 5: Solve for x
    x = 5,083,907.27/3,238
  6. Step 6: Final answer
    x = 1,570.08

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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.