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Finding the Fourth Proportional to 2,886.41, 4,329.60 and 806.41

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Solution

The fourth proportional to 2,886.41, 4,329.60 and 806.41 is: 1,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.41 : 4,329.60 = 806.41 : x
  2. Step 2: Convert to fraction form
    2,886.41/4,329.60 = 806.41/x
  3. Step 3: Cross multiply
    2,886.41x = 4,329.60 × 806.41
  4. Step 4: Simplify right side
    2,886.41x = 3,491,415.31
  5. Step 5: Solve for x
    x = 3,491,415.31/2,886.41
  6. Step 6: Final answer
    x = 1,209.60

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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.