Home / 3,947.93-5,448.23-2,179.65

Finding the Fourth Proportional to 3,947.93, 5,448.23 and 2,179.65

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Solution

The fourth proportional to 3,947.93, 5,448.23 and 2,179.65 is: 3,007.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.93 : 5,448.23 = 2,179.65 : x
  2. Step 2: Convert to fraction form
    3,947.93/5,448.23 = 2,179.65/x
  3. Step 3: Cross multiply
    3,947.93x = 5,448.23 × 2,179.65
  4. Step 4: Simplify right side
    3,947.93x = 11,875,234.52
  5. Step 5: Solve for x
    x = 11,875,234.52/3,947.93
  6. Step 6: Final answer
    x = 3,007.96

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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.