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Finding the Fourth Proportional to 4,919.76, 7,379.19 and 1,633.23

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Solution

The fourth proportional to 4,919.76, 7,379.19 and 1,633.23 is: 2,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.76 : 7,379.19 = 1,633.23 : x
  2. Step 2: Convert to fraction form
    4,919.76/7,379.19 = 1,633.23/x
  3. Step 3: Cross multiply
    4,919.76x = 7,379.19 × 1,633.23
  4. Step 4: Simplify right side
    4,919.76x = 12,051,914.48
  5. Step 5: Solve for x
    x = 12,051,914.48/4,919.76
  6. Step 6: Final answer
    x = 2,449.70

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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.