Home / 7,891.01-11,819.55-3,724.79

Finding the Fourth Proportional to 7,891.01, 11,819.55 and 3,724.79

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Solution

The fourth proportional to 7,891.01, 11,819.55 and 3,724.79 is: 5,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.01 : 11,819.55 = 3,724.79 : x
  2. Step 2: Convert to fraction form
    7,891.01/11,819.55 = 3,724.79/x
  3. Step 3: Cross multiply
    7,891.01x = 11,819.55 × 3,724.79
  4. Step 4: Simplify right side
    7,891.01x = 44,025,341.64
  5. Step 5: Solve for x
    x = 44,025,341.64/7,891.01
  6. Step 6: Final answer
    x = 5,579.18

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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.