Home / 4,579.35-6,864.24-2,115.79

Finding the Fourth Proportional to 4,579.35, 6,864.24 and 2,115.79

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Solution

The fourth proportional to 4,579.35, 6,864.24 and 2,115.79 is: 3,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,579.35 : 6,864.24 = 2,115.79 : x
  2. Step 2: Convert to fraction form
    4,579.35/6,864.24 = 2,115.79/x
  3. Step 3: Cross multiply
    4,579.35x = 6,864.24 × 2,115.79
  4. Step 4: Simplify right side
    4,579.35x = 14,523,290.35
  5. Step 5: Solve for x
    x = 14,523,290.35/4,579.35
  6. Step 6: Final answer
    x = 3,171.47

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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.