Home / 10,253.33-15,379.78-2,857.60

Finding the Fourth Proportional to 10,253.33, 15,379.78 and 2,857.60

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Solution

The fourth proportional to 10,253.33, 15,379.78 and 2,857.60 is: 4,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.33 : 15,379.78 = 2,857.60 : x
  2. Step 2: Convert to fraction form
    10,253.33/15,379.78 = 2,857.60/x
  3. Step 3: Cross multiply
    10,253.33x = 15,379.78 × 2,857.60
  4. Step 4: Simplify right side
    10,253.33x = 43,949,259.33
  5. Step 5: Solve for x
    x = 43,949,259.33/10,253.33
  6. Step 6: Final answer
    x = 4,286.34

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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.