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Finding the Fourth Proportional to 4,979.26, 7,470.74 and 2,380.42

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Solution

The fourth proportional to 4,979.26, 7,470.74 and 2,380.42 is: 3,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.26 : 7,470.74 = 2,380.42 : x
  2. Step 2: Convert to fraction form
    4,979.26/7,470.74 = 2,380.42/x
  3. Step 3: Cross multiply
    4,979.26x = 7,470.74 × 2,380.42
  4. Step 4: Simplify right side
    4,979.26x = 17,783,498.91
  5. Step 5: Solve for x
    x = 17,783,498.91/4,979.26
  6. Step 6: Final answer
    x = 3,571.51

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1.5x scale

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.