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Finding the Fourth Proportional to 4,755, 7,135.38 and 2,019

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Solution

The fourth proportional to 4,755, 7,135.38 and 2,019 is: 3,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755 : 7,135.38 = 2,019 : x
  2. Step 2: Convert to fraction form
    4,755/7,135.38 = 2,019/x
  3. Step 3: Cross multiply
    4,755x = 7,135.38 × 2,019
  4. Step 4: Simplify right side
    4,755x = 14,406,332.22
  5. Step 5: Solve for x
    x = 14,406,332.22/4,755
  6. Step 6: Final answer
    x = 3,029.72

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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.