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Finding the Fourth Proportional to 3,354.75, 5,029.74 and 1,479.72

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Solution

The fourth proportional to 3,354.75, 5,029.74 and 1,479.72 is: 2,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.75 : 5,029.74 = 1,479.72 : x
  2. Step 2: Convert to fraction form
    3,354.75/5,029.74 = 1,479.72/x
  3. Step 3: Cross multiply
    3,354.75x = 5,029.74 × 1,479.72
  4. Step 4: Simplify right side
    3,354.75x = 7,442,606.87
  5. Step 5: Solve for x
    x = 7,442,606.87/3,354.75
  6. Step 6: Final answer
    x = 2,218.53

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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.