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Finding the Fourth Proportional to 4,996.80, 7,488.80 and 3,836.80

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Solution

The fourth proportional to 4,996.80, 7,488.80 and 3,836.80 is: 5,750.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,996.80 : 7,488.80 = 3,836.80 : x
  2. Step 2: Convert to fraction form
    4,996.80/7,488.80 = 3,836.80/x
  3. Step 3: Cross multiply
    4,996.80x = 7,488.80 × 3,836.80
  4. Step 4: Simplify right side
    4,996.80x = 28,733,027.84
  5. Step 5: Solve for x
    x = 28,733,027.84/4,996.80
  6. Step 6: Final answer
    x = 5,750.29

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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.