Home / 7,086.06-10,629-3,187.71

Finding the Fourth Proportional to 7,086.06, 10,629 and 3,187.71

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Solution

The fourth proportional to 7,086.06, 10,629 and 3,187.71 is: 4,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.06 : 10,629 = 3,187.71 : x
  2. Step 2: Convert to fraction form
    7,086.06/10,629 = 3,187.71/x
  3. Step 3: Cross multiply
    7,086.06x = 10,629 × 3,187.71
  4. Step 4: Simplify right side
    7,086.06x = 33,882,169.59
  5. Step 5: Solve for x
    x = 33,882,169.59/7,086.06
  6. Step 6: Final answer
    x = 4,781.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.