Home / 4,814.12-7,221.90-2,040.80

Finding the Fourth Proportional to 4,814.12, 7,221.90 and 2,040.80

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Solution

The fourth proportional to 4,814.12, 7,221.90 and 2,040.80 is: 3,061.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,814.12 : 7,221.90 = 2,040.80 : x
  2. Step 2: Convert to fraction form
    4,814.12/7,221.90 = 2,040.80/x
  3. Step 3: Cross multiply
    4,814.12x = 7,221.90 × 2,040.80
  4. Step 4: Simplify right side
    4,814.12x = 14,738,453.52
  5. Step 5: Solve for x
    x = 14,738,453.52/4,814.12
  6. Step 6: Final answer
    x = 3,061.51

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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.