Home / 4,858.20-7,287.30-3,187.80

Finding the Fourth Proportional to 4,858.20, 7,287.30 and 3,187.80

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Solution

The fourth proportional to 4,858.20, 7,287.30 and 3,187.80 is: 4,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,858.20 : 7,287.30 = 3,187.80 : x
  2. Step 2: Convert to fraction form
    4,858.20/7,287.30 = 3,187.80/x
  3. Step 3: Cross multiply
    4,858.20x = 7,287.30 × 3,187.80
  4. Step 4: Simplify right side
    4,858.20x = 23,230,454.94
  5. Step 5: Solve for x
    x = 23,230,454.94/4,858.20
  6. Step 6: Final answer
    x = 4,781.70

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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.