Home / 4,979.45-6,871.25-2,854.96

Finding the Fourth Proportional to 4,979.45, 6,871.25 and 2,854.96

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Solution

The fourth proportional to 4,979.45, 6,871.25 and 2,854.96 is: 3,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.45 : 6,871.25 = 2,854.96 : x
  2. Step 2: Convert to fraction form
    4,979.45/6,871.25 = 2,854.96/x
  3. Step 3: Cross multiply
    4,979.45x = 6,871.25 × 2,854.96
  4. Step 4: Simplify right side
    4,979.45x = 19,617,133.86
  5. Step 5: Solve for x
    x = 19,617,133.86/4,979.45
  6. Step 6: Final answer
    x = 3,939.62

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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.