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Finding the Fourth Proportional to 3,636.64, 5,454.84 and 2,914.92

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Solution

The fourth proportional to 3,636.64, 5,454.84 and 2,914.92 is: 4,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,636.64 : 5,454.84 = 2,914.92 : x
  2. Step 2: Convert to fraction form
    3,636.64/5,454.84 = 2,914.92/x
  3. Step 3: Cross multiply
    3,636.64x = 5,454.84 × 2,914.92
  4. Step 4: Simplify right side
    3,636.64x = 15,900,422.21
  5. Step 5: Solve for x
    x = 15,900,422.21/3,636.64
  6. Step 6: Final answer
    x = 4,372.28

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1.5x scale

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.