Home / 3,087.05-4,631.75-1,855.31

Finding the Fourth Proportional to 3,087.05, 4,631.75 and 1,855.31

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Solution

The fourth proportional to 3,087.05, 4,631.75 and 1,855.31 is: 2,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.05 : 4,631.75 = 1,855.31 : x
  2. Step 2: Convert to fraction form
    3,087.05/4,631.75 = 1,855.31/x
  3. Step 3: Cross multiply
    3,087.05x = 4,631.75 × 1,855.31
  4. Step 4: Simplify right side
    3,087.05x = 8,593,306.61
  5. Step 5: Solve for x
    x = 8,593,306.61/3,087.05
  6. Step 6: Final answer
    x = 2,783.67

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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.