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Finding the Fourth Proportional to 6,015.90, 8,979.79 and 5,305.73

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Solution

The fourth proportional to 6,015.90, 8,979.79 and 5,305.73 is: 7,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,015.90 : 8,979.79 = 5,305.73 : x
  2. Step 2: Convert to fraction form
    6,015.90/8,979.79 = 5,305.73/x
  3. Step 3: Cross multiply
    6,015.90x = 8,979.79 × 5,305.73
  4. Step 4: Simplify right side
    6,015.90x = 47,644,359.85
  5. Step 5: Solve for x
    x = 47,644,359.85/6,015.90
  6. Step 6: Final answer
    x = 7,919.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.