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Finding the Fourth Proportional to 3,479.21, 5,213.41 and 2,746.97

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Solution

The fourth proportional to 3,479.21, 5,213.41 and 2,746.97 is: 4,116.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.21 : 5,213.41 = 2,746.97 : x
  2. Step 2: Convert to fraction form
    3,479.21/5,213.41 = 2,746.97/x
  3. Step 3: Cross multiply
    3,479.21x = 5,213.41 × 2,746.97
  4. Step 4: Simplify right side
    3,479.21x = 14,321,080.87
  5. Step 5: Solve for x
    x = 14,321,080.87/3,479.21
  6. Step 6: Final answer
    x = 4,116.19

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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.