Home / 4,078.19-6,122.75-2,415.38

Finding the Fourth Proportional to 4,078.19, 6,122.75 and 2,415.38

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Solution

The fourth proportional to 4,078.19, 6,122.75 and 2,415.38 is: 3,626.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,078.19 : 6,122.75 = 2,415.38 : x
  2. Step 2: Convert to fraction form
    4,078.19/6,122.75 = 2,415.38/x
  3. Step 3: Cross multiply
    4,078.19x = 6,122.75 × 2,415.38
  4. Step 4: Simplify right side
    4,078.19x = 14,788,767.90
  5. Step 5: Solve for x
    x = 14,788,767.90/4,078.19
  6. Step 6: Final answer
    x = 3,626.31

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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.