Home / 5,811.96-8,020.54-3,159.36

Finding the Fourth Proportional to 5,811.96, 8,020.54 and 3,159.36

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Solution

The fourth proportional to 5,811.96, 8,020.54 and 3,159.36 is: 4,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.96 : 8,020.54 = 3,159.36 : x
  2. Step 2: Convert to fraction form
    5,811.96/8,020.54 = 3,159.36/x
  3. Step 3: Cross multiply
    5,811.96x = 8,020.54 × 3,159.36
  4. Step 4: Simplify right side
    5,811.96x = 25,339,773.25
  5. Step 5: Solve for x
    x = 25,339,773.25/5,811.96
  6. Step 6: Final answer
    x = 4,359.94

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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.