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Finding the Fourth Proportional to 5,169.39, 7,753.56 and 1,661.92

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Solution

The fourth proportional to 5,169.39, 7,753.56 and 1,661.92 is: 2,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.39 : 7,753.56 = 1,661.92 : x
  2. Step 2: Convert to fraction form
    5,169.39/7,753.56 = 1,661.92/x
  3. Step 3: Cross multiply
    5,169.39x = 7,753.56 × 1,661.92
  4. Step 4: Simplify right side
    5,169.39x = 12,885,770.82
  5. Step 5: Solve for x
    x = 12,885,770.82/5,169.39
  6. Step 6: Final answer
    x = 2,492.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.