Home / 8,729.78-13,097.44-2,890.48

Finding the Fourth Proportional to 8,729.78, 13,097.44 and 2,890.48

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Solution

The fourth proportional to 8,729.78, 13,097.44 and 2,890.48 is: 4,336.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.78 : 13,097.44 = 2,890.48 : x
  2. Step 2: Convert to fraction form
    8,729.78/13,097.44 = 2,890.48/x
  3. Step 3: Cross multiply
    8,729.78x = 13,097.44 × 2,890.48
  4. Step 4: Simplify right side
    8,729.78x = 37,857,888.37
  5. Step 5: Solve for x
    x = 37,857,888.37/8,729.78
  6. Step 6: Final answer
    x = 4,336.64

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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.