Home / 7,855.29-11,784.92-2,308.81

Finding the Fourth Proportional to 7,855.29, 11,784.92 and 2,308.81

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Solution

The fourth proportional to 7,855.29, 11,784.92 and 2,308.81 is: 3,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.29 : 11,784.92 = 2,308.81 : x
  2. Step 2: Convert to fraction form
    7,855.29/11,784.92 = 2,308.81/x
  3. Step 3: Cross multiply
    7,855.29x = 11,784.92 × 2,308.81
  4. Step 4: Simplify right side
    7,855.29x = 27,209,141.15
  5. Step 5: Solve for x
    x = 27,209,141.15/7,855.29
  6. Step 6: Final answer
    x = 3,463.80

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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.