Home / 7,780.91-11,671.56-2,234.03

Finding the Fourth Proportional to 7,780.91, 11,671.56 and 2,234.03

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Solution

The fourth proportional to 7,780.91, 11,671.56 and 2,234.03 is: 3,351.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.91 : 11,671.56 = 2,234.03 : x
  2. Step 2: Convert to fraction form
    7,780.91/11,671.56 = 2,234.03/x
  3. Step 3: Cross multiply
    7,780.91x = 11,671.56 × 2,234.03
  4. Step 4: Simplify right side
    7,780.91x = 26,074,556.83
  5. Step 5: Solve for x
    x = 26,074,556.83/7,780.91
  6. Step 6: Final answer
    x = 3,351.10

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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.