Home / 6,979.84-9,632.96-3,996

Finding the Fourth Proportional to 6,979.84, 9,632.96 and 3,996

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Solution

The fourth proportional to 6,979.84, 9,632.96 and 3,996 is: 5,514.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.84 : 9,632.96 = 3,996 : x
  2. Step 2: Convert to fraction form
    6,979.84/9,632.96 = 3,996/x
  3. Step 3: Cross multiply
    6,979.84x = 9,632.96 × 3,996
  4. Step 4: Simplify right side
    6,979.84x = 38,493,308.16
  5. Step 5: Solve for x
    x = 38,493,308.16/6,979.84
  6. Step 6: Final answer
    x = 5,514.93

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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.