Home / 3,087.62-4,630.94-1,139.37

Finding the Fourth Proportional to 3,087.62, 4,630.94 and 1,139.37

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Solution

The fourth proportional to 3,087.62, 4,630.94 and 1,139.37 is: 1,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.62 : 4,630.94 = 1,139.37 : x
  2. Step 2: Convert to fraction form
    3,087.62/4,630.94 = 1,139.37/x
  3. Step 3: Cross multiply
    3,087.62x = 4,630.94 × 1,139.37
  4. Step 4: Simplify right side
    3,087.62x = 5,276,354.11
  5. Step 5: Solve for x
    x = 5,276,354.11/3,087.62
  6. Step 6: Final answer
    x = 1,708.87

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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.