Home / 3,180.21-4,768.84-1,864.37

Finding the Fourth Proportional to 3,180.21, 4,768.84 and 1,864.37

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Solution

The fourth proportional to 3,180.21, 4,768.84 and 1,864.37 is: 2,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.21 : 4,768.84 = 1,864.37 : x
  2. Step 2: Convert to fraction form
    3,180.21/4,768.84 = 1,864.37/x
  3. Step 3: Cross multiply
    3,180.21x = 4,768.84 × 1,864.37
  4. Step 4: Simplify right side
    3,180.21x = 8,890,856.19
  5. Step 5: Solve for x
    x = 8,890,856.19/3,180.21
  6. Step 6: Final answer
    x = 2,795.68

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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.