Home / 7,811.91-10,780.59-4,668.09

Finding the Fourth Proportional to 7,811.91, 10,780.59 and 4,668.09

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Solution

The fourth proportional to 7,811.91, 10,780.59 and 4,668.09 is: 6,442.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.91 : 10,780.59 = 4,668.09 : x
  2. Step 2: Convert to fraction form
    7,811.91/10,780.59 = 4,668.09/x
  3. Step 3: Cross multiply
    7,811.91x = 10,780.59 × 4,668.09
  4. Step 4: Simplify right side
    7,811.91x = 50,324,764.37
  5. Step 5: Solve for x
    x = 50,324,764.37/7,811.91
  6. Step 6: Final answer
    x = 6,442.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.