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Finding the Fourth Proportional to 5,208, 7,808.72 and 2,244.84

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Solution

The fourth proportional to 5,208, 7,808.72 and 2,244.84 is: 3,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,208 : 7,808.72 = 2,244.84 : x
  2. Step 2: Convert to fraction form
    5,208/7,808.72 = 2,244.84/x
  3. Step 3: Cross multiply
    5,208x = 7,808.72 × 2,244.84
  4. Step 4: Simplify right side
    5,208x = 17,529,327.00
  5. Step 5: Solve for x
    x = 17,529,327.00/5,208
  6. Step 6: Final answer
    x = 3,365.85

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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.