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Finding the Fourth Proportional to 3,310.51, 4,568.91 and 1,913.26

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Solution

The fourth proportional to 3,310.51, 4,568.91 and 1,913.26 is: 2,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,310.51 : 4,568.91 = 1,913.26 : x
  2. Step 2: Convert to fraction form
    3,310.51/4,568.91 = 1,913.26/x
  3. Step 3: Cross multiply
    3,310.51x = 4,568.91 × 1,913.26
  4. Step 4: Simplify right side
    3,310.51x = 8,741,503.18
  5. Step 5: Solve for x
    x = 8,741,503.18/3,310.51
  6. Step 6: Final answer
    x = 2,640.53

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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.