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Finding the Fourth Proportional to 3,238.47, 4,857.87 and 1,159.47

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Solution

The fourth proportional to 3,238.47, 4,857.87 and 1,159.47 is: 1,739.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.47 : 4,857.87 = 1,159.47 : x
  2. Step 2: Convert to fraction form
    3,238.47/4,857.87 = 1,159.47/x
  3. Step 3: Cross multiply
    3,238.47x = 4,857.87 × 1,159.47
  4. Step 4: Simplify right side
    3,238.47x = 5,632,554.53
  5. Step 5: Solve for x
    x = 5,632,554.53/3,238.47
  6. Step 6: Final answer
    x = 1,739.26

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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.