Home / 3,969.10-5,477.68-2,200.67

Finding the Fourth Proportional to 3,969.10, 5,477.68 and 2,200.67

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Solution

The fourth proportional to 3,969.10, 5,477.68 and 2,200.67 is: 3,037.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.10 : 5,477.68 = 2,200.67 : x
  2. Step 2: Convert to fraction form
    3,969.10/5,477.68 = 2,200.67/x
  3. Step 3: Cross multiply
    3,969.10x = 5,477.68 × 2,200.67
  4. Step 4: Simplify right side
    3,969.10x = 12,054,527.65
  5. Step 5: Solve for x
    x = 12,054,527.65/3,969.10
  6. Step 6: Final answer
    x = 3,037.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.