Home / 2,827.82-4,238.66-2,415.71

Finding the Fourth Proportional to 2,827.82, 4,238.66 and 2,415.71

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Solution

The fourth proportional to 2,827.82, 4,238.66 and 2,415.71 is: 3,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.82 : 4,238.66 = 2,415.71 : x
  2. Step 2: Convert to fraction form
    2,827.82/4,238.66 = 2,415.71/x
  3. Step 3: Cross multiply
    2,827.82x = 4,238.66 × 2,415.71
  4. Step 4: Simplify right side
    2,827.82x = 10,239,376.40
  5. Step 5: Solve for x
    x = 10,239,376.40/2,827.82
  6. Step 6: Final answer
    x = 3,620.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.