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Finding the Fourth Proportional to 2,894.63, 3,994.68 and 1,635.72

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Solution

The fourth proportional to 2,894.63, 3,994.68 and 1,635.72 is: 2,257.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894.63 : 3,994.68 = 1,635.72 : x
  2. Step 2: Convert to fraction form
    2,894.63/3,994.68 = 1,635.72/x
  3. Step 3: Cross multiply
    2,894.63x = 3,994.68 × 1,635.72
  4. Step 4: Simplify right side
    2,894.63x = 6,534,177.97
  5. Step 5: Solve for x
    x = 6,534,177.97/2,894.63
  6. Step 6: Final answer
    x = 2,257.35

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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.