Home / 5,286.25-7,929.44-2,513.19

Finding the Fourth Proportional to 5,286.25, 7,929.44 and 2,513.19

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Solution

The fourth proportional to 5,286.25, 7,929.44 and 2,513.19 is: 3,769.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.25 : 7,929.44 = 2,513.19 : x
  2. Step 2: Convert to fraction form
    5,286.25/7,929.44 = 2,513.19/x
  3. Step 3: Cross multiply
    5,286.25x = 7,929.44 × 2,513.19
  4. Step 4: Simplify right side
    5,286.25x = 19,928,189.31
  5. Step 5: Solve for x
    x = 19,928,189.31/5,286.25
  6. Step 6: Final answer
    x = 3,769.82

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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.