Home / 2,620.75-3,927.42-1,451.28

Finding the Fourth Proportional to 2,620.75, 3,927.42 and 1,451.28

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Solution

The fourth proportional to 2,620.75, 3,927.42 and 1,451.28 is: 2,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.75 : 3,927.42 = 1,451.28 : x
  2. Step 2: Convert to fraction form
    2,620.75/3,927.42 = 1,451.28/x
  3. Step 3: Cross multiply
    2,620.75x = 3,927.42 × 1,451.28
  4. Step 4: Simplify right side
    2,620.75x = 5,699,786.10
  5. Step 5: Solve for x
    x = 5,699,786.10/2,620.75
  6. Step 6: Final answer
    x = 2,174.87

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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.