Home / 6,979.63-9,631.72-3,995.27

Finding the Fourth Proportional to 6,979.63, 9,631.72 and 3,995.27

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Solution

The fourth proportional to 6,979.63, 9,631.72 and 3,995.27 is: 5,513.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.63 : 9,631.72 = 3,995.27 : x
  2. Step 2: Convert to fraction form
    6,979.63/9,631.72 = 3,995.27/x
  3. Step 3: Cross multiply
    6,979.63x = 9,631.72 × 3,995.27
  4. Step 4: Simplify right side
    6,979.63x = 38,481,321.96
  5. Step 5: Solve for x
    x = 38,481,321.96/6,979.63
  6. Step 6: Final answer
    x = 5,513.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.