Home / 5,131.73-7,081.65-2,893.59

Finding the Fourth Proportional to 5,131.73, 7,081.65 and 2,893.59

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Solution

The fourth proportional to 5,131.73, 7,081.65 and 2,893.59 is: 3,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.73 : 7,081.65 = 2,893.59 : x
  2. Step 2: Convert to fraction form
    5,131.73/7,081.65 = 2,893.59/x
  3. Step 3: Cross multiply
    5,131.73x = 7,081.65 × 2,893.59
  4. Step 4: Simplify right side
    5,131.73x = 20,491,391.62
  5. Step 5: Solve for x
    x = 20,491,391.62/5,131.73
  6. Step 6: Final answer
    x = 3,993.07

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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.