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Finding the Fourth Proportional to 4,750, 7,125.04 and 1,672

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Solution

The fourth proportional to 4,750, 7,125.04 and 1,672 is: 2,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750 : 7,125.04 = 1,672 : x
  2. Step 2: Convert to fraction form
    4,750/7,125.04 = 1,672/x
  3. Step 3: Cross multiply
    4,750x = 7,125.04 × 1,672
  4. Step 4: Simplify right side
    4,750x = 11,913,066.88
  5. Step 5: Solve for x
    x = 11,913,066.88/4,750
  6. Step 6: Final answer
    x = 2,508.01

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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.