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Finding the Fourth Proportional to 3,919.65, 5,884.49 and 3,367.89

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Solution

The fourth proportional to 3,919.65, 5,884.49 and 3,367.89 is: 5,056.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.65 : 5,884.49 = 3,367.89 : x
  2. Step 2: Convert to fraction form
    3,919.65/5,884.49 = 3,367.89/x
  3. Step 3: Cross multiply
    3,919.65x = 5,884.49 × 3,367.89
  4. Step 4: Simplify right side
    3,919.65x = 19,818,298.19
  5. Step 5: Solve for x
    x = 19,818,298.19/3,919.65
  6. Step 6: Final answer
    x = 5,056.14

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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.