Home / 5,078.98-7,616.72-2,579.20

Finding the Fourth Proportional to 5,078.98, 7,616.72 and 2,579.20

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Solution

The fourth proportional to 5,078.98, 7,616.72 and 2,579.20 is: 3,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.98 : 7,616.72 = 2,579.20 : x
  2. Step 2: Convert to fraction form
    5,078.98/7,616.72 = 2,579.20/x
  3. Step 3: Cross multiply
    5,078.98x = 7,616.72 × 2,579.20
  4. Step 4: Simplify right side
    5,078.98x = 19,645,038.54
  5. Step 5: Solve for x
    x = 19,645,038.54/5,078.98
  6. Step 6: Final answer
    x = 3,867.91

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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.