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Finding the Fourth Proportional to 7,881.64, 11,823.63 and 2,884.27

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Solution

The fourth proportional to 7,881.64, 11,823.63 and 2,884.27 is: 4,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.64 : 11,823.63 = 2,884.27 : x
  2. Step 2: Convert to fraction form
    7,881.64/11,823.63 = 2,884.27/x
  3. Step 3: Cross multiply
    7,881.64x = 11,823.63 × 2,884.27
  4. Step 4: Simplify right side
    7,881.64x = 34,102,541.30
  5. Step 5: Solve for x
    x = 34,102,541.30/7,881.64
  6. Step 6: Final answer
    x = 4,326.83

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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.