Home / 4,786.20-7,178.08-1,499.20

Finding the Fourth Proportional to 4,786.20, 7,178.08 and 1,499.20

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Solution

The fourth proportional to 4,786.20, 7,178.08 and 1,499.20 is: 2,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786.20 : 7,178.08 = 1,499.20 : x
  2. Step 2: Convert to fraction form
    4,786.20/7,178.08 = 1,499.20/x
  3. Step 3: Cross multiply
    4,786.20x = 7,178.08 × 1,499.20
  4. Step 4: Simplify right side
    4,786.20x = 10,761,377.54
  5. Step 5: Solve for x
    x = 10,761,377.54/4,786.20
  6. Step 6: Final answer
    x = 2,248.42

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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.