Home / 2,814.30-3,883.68-1,555.36

Finding the Fourth Proportional to 2,814.30, 3,883.68 and 1,555.36

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Solution

The fourth proportional to 2,814.30, 3,883.68 and 1,555.36 is: 2,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.30 : 3,883.68 = 1,555.36 : x
  2. Step 2: Convert to fraction form
    2,814.30/3,883.68 = 1,555.36/x
  3. Step 3: Cross multiply
    2,814.30x = 3,883.68 × 1,555.36
  4. Step 4: Simplify right side
    2,814.30x = 6,040,520.52
  5. Step 5: Solve for x
    x = 6,040,520.52/2,814.30
  6. Step 6: Final answer
    x = 2,146.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.