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Finding the Fourth Proportional to 3,954.98, 5,453.79 and 3,397.30

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Solution

The fourth proportional to 3,954.98, 5,453.79 and 3,397.30 is: 4,684.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.98 : 5,453.79 = 3,397.30 : x
  2. Step 2: Convert to fraction form
    3,954.98/5,453.79 = 3,397.30/x
  3. Step 3: Cross multiply
    3,954.98x = 5,453.79 × 3,397.30
  4. Step 4: Simplify right side
    3,954.98x = 18,528,160.77
  5. Step 5: Solve for x
    x = 18,528,160.77/3,954.98
  6. Step 6: Final answer
    x = 4,684.77

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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.