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Finding the Fourth Proportional to 3,287.43, 4,906.58 and 2,913.21

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Solution

The fourth proportional to 3,287.43, 4,906.58 and 2,913.21 is: 4,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.43 : 4,906.58 = 2,913.21 : x
  2. Step 2: Convert to fraction form
    3,287.43/4,906.58 = 2,913.21/x
  3. Step 3: Cross multiply
    3,287.43x = 4,906.58 × 2,913.21
  4. Step 4: Simplify right side
    3,287.43x = 14,293,905.20
  5. Step 5: Solve for x
    x = 14,293,905.20/3,287.43
  6. Step 6: Final answer
    x = 4,348.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.