Home / 5,811.85-8,020.35-3,159.25

Finding the Fourth Proportional to 5,811.85, 8,020.35 and 3,159.25

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Solution

The fourth proportional to 5,811.85, 8,020.35 and 3,159.25 is: 4,359.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.85 : 8,020.35 = 3,159.25 : x
  2. Step 2: Convert to fraction form
    5,811.85/8,020.35 = 3,159.25/x
  3. Step 3: Cross multiply
    5,811.85x = 8,020.35 × 3,159.25
  4. Step 4: Simplify right side
    5,811.85x = 25,338,270.69
  5. Step 5: Solve for x
    x = 25,338,270.69/5,811.85
  6. Step 6: Final answer
    x = 4,359.76

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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.