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Finding the Fourth Proportional to 5,328, 7,992 and 2,250.72

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Solution

The fourth proportional to 5,328, 7,992 and 2,250.72 is: 3,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328 : 7,992 = 2,250.72 : x
  2. Step 2: Convert to fraction form
    5,328/7,992 = 2,250.72/x
  3. Step 3: Cross multiply
    5,328x = 7,992 × 2,250.72
  4. Step 4: Simplify right side
    5,328x = 17,987,754.24
  5. Step 5: Solve for x
    x = 17,987,754.24/5,328
  6. Step 6: Final answer
    x = 3,376.08

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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.