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Finding the Fourth Proportional to 3,469.94, 4,788.08 and 2,126.15

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Solution

The fourth proportional to 3,469.94, 4,788.08 and 2,126.15 is: 2,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.94 : 4,788.08 = 2,126.15 : x
  2. Step 2: Convert to fraction form
    3,469.94/4,788.08 = 2,126.15/x
  3. Step 3: Cross multiply
    3,469.94x = 4,788.08 × 2,126.15
  4. Step 4: Simplify right side
    3,469.94x = 10,180,194.58
  5. Step 5: Solve for x
    x = 10,180,194.58/3,469.94
  6. Step 6: Final answer
    x = 2,933.82

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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.