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Finding the Fourth Proportional to 7,958.52, 10,979.82 and 4,813.56

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Solution

The fourth proportional to 7,958.52, 10,979.82 and 4,813.56 is: 6,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,958.52 : 10,979.82 = 4,813.56 : x
  2. Step 2: Convert to fraction form
    7,958.52/10,979.82 = 4,813.56/x
  3. Step 3: Cross multiply
    7,958.52x = 10,979.82 × 4,813.56
  4. Step 4: Simplify right side
    7,958.52x = 52,852,022.36
  5. Step 5: Solve for x
    x = 52,852,022.36/7,958.52
  6. Step 6: Final answer
    x = 6,640.94

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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.