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Finding the Fourth Proportional to 2,819.88, 3,891.48 and 1,701.24

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Solution

The fourth proportional to 2,819.88, 3,891.48 and 1,701.24 is: 2,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.88 : 3,891.48 = 1,701.24 : x
  2. Step 2: Convert to fraction form
    2,819.88/3,891.48 = 1,701.24/x
  3. Step 3: Cross multiply
    2,819.88x = 3,891.48 × 1,701.24
  4. Step 4: Simplify right side
    2,819.88x = 6,620,341.44
  5. Step 5: Solve for x
    x = 6,620,341.44/2,819.88
  6. Step 6: Final answer
    x = 2,347.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.