Home / 6,979.88-9,632.48-3,995.64

Finding the Fourth Proportional to 6,979.88, 9,632.48 and 3,995.64

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Solution

The fourth proportional to 6,979.88, 9,632.48 and 3,995.64 is: 5,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.88 : 9,632.48 = 3,995.64 : x
  2. Step 2: Convert to fraction form
    6,979.88/9,632.48 = 3,995.64/x
  3. Step 3: Cross multiply
    6,979.88x = 9,632.48 × 3,995.64
  4. Step 4: Simplify right side
    6,979.88x = 38,487,922.39
  5. Step 5: Solve for x
    x = 38,487,922.39/6,979.88
  6. Step 6: Final answer
    x = 5,514.12

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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.