Home / 6,979.82-9,631.96-3,835.58

Finding the Fourth Proportional to 6,979.82, 9,631.96 and 3,835.58

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Solution

The fourth proportional to 6,979.82, 9,631.96 and 3,835.58 is: 5,292.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,979.82 : 9,631.96 = 3,835.58 : x
  2. Step 2: Convert to fraction form
    6,979.82/9,631.96 = 3,835.58/x
  3. Step 3: Cross multiply
    6,979.82x = 9,631.96 × 3,835.58
  4. Step 4: Simplify right side
    6,979.82x = 36,944,095.39
  5. Step 5: Solve for x
    x = 36,944,095.39/6,979.82
  6. Step 6: Final answer
    x = 5,292.99

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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.