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Finding the Fourth Proportional to 3,000, 4,502 and 1,152.64

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Solution

The fourth proportional to 3,000, 4,502 and 1,152.64 is: 1,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000 : 4,502 = 1,152.64 : x
  2. Step 2: Convert to fraction form
    3,000/4,502 = 1,152.64/x
  3. Step 3: Cross multiply
    3,000x = 4,502 × 1,152.64
  4. Step 4: Simplify right side
    3,000x = 5,189,185.28
  5. Step 5: Solve for x
    x = 5,189,185.28/3,000
  6. Step 6: Final answer
    x = 1,729.73

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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.