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Finding the Fourth Proportional to 2,799.57, 3,863.52 and 1,604.79

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Solution

The fourth proportional to 2,799.57, 3,863.52 and 1,604.79 is: 2,214.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.57 : 3,863.52 = 1,604.79 : x
  2. Step 2: Convert to fraction form
    2,799.57/3,863.52 = 1,604.79/x
  3. Step 3: Cross multiply
    2,799.57x = 3,863.52 × 1,604.79
  4. Step 4: Simplify right side
    2,799.57x = 6,200,138.26
  5. Step 5: Solve for x
    x = 6,200,138.26/2,799.57
  6. Step 6: Final answer
    x = 2,214.68

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1.5x scale

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.