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Finding the Fourth Proportional to 2,891.00, 4,336.50 and 699.72

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Solution

The fourth proportional to 2,891.00, 4,336.50 and 699.72 is: 1,049.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.00 : 4,336.50 = 699.72 : x
  2. Step 2: Convert to fraction form
    2,891.00/4,336.50 = 699.72/x
  3. Step 3: Cross multiply
    2,891.00x = 4,336.50 × 699.72
  4. Step 4: Simplify right side
    2,891.00x = 3,034,335.78
  5. Step 5: Solve for x
    x = 3,034,335.78/2,891.00
  6. Step 6: Final answer
    x = 1,049.58

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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.