Home / 7,884.48-11,827.38-2,619.30

Finding the Fourth Proportional to 7,884.48, 11,827.38 and 2,619.30

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Solution

The fourth proportional to 7,884.48, 11,827.38 and 2,619.30 is: 3,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.48 : 11,827.38 = 2,619.30 : x
  2. Step 2: Convert to fraction form
    7,884.48/11,827.38 = 2,619.30/x
  3. Step 3: Cross multiply
    7,884.48x = 11,827.38 × 2,619.30
  4. Step 4: Simplify right side
    7,884.48x = 30,979,456.43
  5. Step 5: Solve for x
    x = 30,979,456.43/7,884.48
  6. Step 6: Final answer
    x = 3,929.17

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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.