Home / 5,260.11-7,889.42-2,141.48

Finding the Fourth Proportional to 5,260.11, 7,889.42 and 2,141.48

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Solution

The fourth proportional to 5,260.11, 7,889.42 and 2,141.48 is: 3,211.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.11 : 7,889.42 = 2,141.48 : x
  2. Step 2: Convert to fraction form
    5,260.11/7,889.42 = 2,141.48/x
  3. Step 3: Cross multiply
    5,260.11x = 7,889.42 × 2,141.48
  4. Step 4: Simplify right side
    5,260.11x = 16,895,001.05
  5. Step 5: Solve for x
    x = 16,895,001.05/5,260.11
  6. Step 6: Final answer
    x = 3,211.91

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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.