Home / 3,087.99-4,628.07-1,138.05

Finding the Fourth Proportional to 3,087.99, 4,628.07 and 1,138.05

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Solution

The fourth proportional to 3,087.99, 4,628.07 and 1,138.05 is: 1,705.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.99 : 4,628.07 = 1,138.05 : x
  2. Step 2: Convert to fraction form
    3,087.99/4,628.07 = 1,138.05/x
  3. Step 3: Cross multiply
    3,087.99x = 4,628.07 × 1,138.05
  4. Step 4: Simplify right side
    3,087.99x = 5,266,975.06
  5. Step 5: Solve for x
    x = 5,266,975.06/3,087.99
  6. Step 6: Final answer
    x = 1,705.63

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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.