Home / 2,814.12-3,884.16-1,635.36

Finding the Fourth Proportional to 2,814.12, 3,884.16 and 1,635.36

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Solution

The fourth proportional to 2,814.12, 3,884.16 and 1,635.36 is: 2,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.12 : 3,884.16 = 1,635.36 : x
  2. Step 2: Convert to fraction form
    2,814.12/3,884.16 = 1,635.36/x
  3. Step 3: Cross multiply
    2,814.12x = 3,884.16 × 1,635.36
  4. Step 4: Simplify right side
    2,814.12x = 6,351,999.90
  5. Step 5: Solve for x
    x = 6,351,999.90/2,814.12
  6. Step 6: Final answer
    x = 2,257.19

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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.