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Finding the Fourth Proportional to 3,169.60, 4,368 and 2,754.88

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Solution

The fourth proportional to 3,169.60, 4,368 and 2,754.88 is: 3,796.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,169.60 : 4,368 = 2,754.88 : x
  2. Step 2: Convert to fraction form
    3,169.60/4,368 = 2,754.88/x
  3. Step 3: Cross multiply
    3,169.60x = 4,368 × 2,754.88
  4. Step 4: Simplify right side
    3,169.60x = 12,033,315.84
  5. Step 5: Solve for x
    x = 12,033,315.84/3,169.60
  6. Step 6: Final answer
    x = 3,796.48

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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.