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Finding the Fourth Proportional to 4,872, 7,308 and 1,224

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Solution

The fourth proportional to 4,872, 7,308 and 1,224 is: 1,836

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872 : 7,308 = 1,224 : x
  2. Step 2: Convert to fraction form
    4,872/7,308 = 1,224/x
  3. Step 3: Cross multiply
    4,872x = 7,308 × 1,224
  4. Step 4: Simplify right side
    4,872x = 8,944,992
  5. Step 5: Solve for x
    x = 8,944,992/4,872
  6. Step 6: Final answer
    x = 1,836

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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.