Home / 7,979.64-11,967.84-3,049.16

Finding the Fourth Proportional to 7,979.64, 11,967.84 and 3,049.16

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Solution

The fourth proportional to 7,979.64, 11,967.84 and 3,049.16 is: 4,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.64 : 11,967.84 = 3,049.16 : x
  2. Step 2: Convert to fraction form
    7,979.64/11,967.84 = 3,049.16/x
  3. Step 3: Cross multiply
    7,979.64x = 11,967.84 × 3,049.16
  4. Step 4: Simplify right side
    7,979.64x = 36,491,859.01
  5. Step 5: Solve for x
    x = 36,491,859.01/7,979.64
  6. Step 6: Final answer
    x = 4,573.12

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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.