Home / 4,638.56-6,954.80-2,138.72

Finding the Fourth Proportional to 4,638.56, 6,954.80 and 2,138.72

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Solution

The fourth proportional to 4,638.56, 6,954.80 and 2,138.72 is: 3,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,638.56 : 6,954.80 = 2,138.72 : x
  2. Step 2: Convert to fraction form
    4,638.56/6,954.80 = 2,138.72/x
  3. Step 3: Cross multiply
    4,638.56x = 6,954.80 × 2,138.72
  4. Step 4: Simplify right side
    4,638.56x = 14,874,324.39
  5. Step 5: Solve for x
    x = 14,874,324.39/4,638.56
  6. Step 6: Final answer
    x = 3,206.67

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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.