Home / 5,167.87-7,131.81-3,179.59

Finding the Fourth Proportional to 5,167.87, 7,131.81 and 3,179.59

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Solution

The fourth proportional to 5,167.87, 7,131.81 and 3,179.59 is: 4,387.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.87 : 7,131.81 = 3,179.59 : x
  2. Step 2: Convert to fraction form
    5,167.87/7,131.81 = 3,179.59/x
  3. Step 3: Cross multiply
    5,167.87x = 7,131.81 × 3,179.59
  4. Step 4: Simplify right side
    5,167.87x = 22,676,231.76
  5. Step 5: Solve for x
    x = 22,676,231.76/5,167.87
  6. Step 6: Final answer
    x = 4,387.93

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1.5x scale

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.