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Finding the Fourth Proportional to 5,878.27, 8,811.78 and 2,179.51

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Solution

The fourth proportional to 5,878.27, 8,811.78 and 2,179.51 is: 3,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.27 : 8,811.78 = 2,179.51 : x
  2. Step 2: Convert to fraction form
    5,878.27/8,811.78 = 2,179.51/x
  3. Step 3: Cross multiply
    5,878.27x = 8,811.78 × 2,179.51
  4. Step 4: Simplify right side
    5,878.27x = 19,205,340.60
  5. Step 5: Solve for x
    x = 19,205,340.60/5,878.27
  6. Step 6: Final answer
    x = 3,267.18

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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.