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Finding the Fourth Proportional to 6,119.64, 9,179.64 and 4,052.88

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Solution

The fourth proportional to 6,119.64, 9,179.64 and 4,052.88 is: 6,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.64 : 9,179.64 = 4,052.88 : x
  2. Step 2: Convert to fraction form
    6,119.64/9,179.64 = 4,052.88/x
  3. Step 3: Cross multiply
    6,119.64x = 9,179.64 × 4,052.88
  4. Step 4: Simplify right side
    6,119.64x = 37,203,979.36
  5. Step 5: Solve for x
    x = 37,203,979.36/6,119.64
  6. Step 6: Final answer
    x = 6,079.44

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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.