Home / 4,087.05-6,129.96-1,489.38

Finding the Fourth Proportional to 4,087.05, 6,129.96 and 1,489.38

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Solution

The fourth proportional to 4,087.05, 6,129.96 and 1,489.38 is: 2,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.05 : 6,129.96 = 1,489.38 : x
  2. Step 2: Convert to fraction form
    4,087.05/6,129.96 = 1,489.38/x
  3. Step 3: Cross multiply
    4,087.05x = 6,129.96 × 1,489.38
  4. Step 4: Simplify right side
    4,087.05x = 9,129,839.82
  5. Step 5: Solve for x
    x = 9,129,839.82/4,087.05
  6. Step 6: Final answer
    x = 2,233.85

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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.