Home / 2,209.85-3,313.39-1,039.11

Finding the Fourth Proportional to 2,209.85, 3,313.39 and 1,039.11

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Solution

The fourth proportional to 2,209.85, 3,313.39 and 1,039.11 is: 1,558.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.85 : 3,313.39 = 1,039.11 : x
  2. Step 2: Convert to fraction form
    2,209.85/3,313.39 = 1,039.11/x
  3. Step 3: Cross multiply
    2,209.85x = 3,313.39 × 1,039.11
  4. Step 4: Simplify right side
    2,209.85x = 3,442,976.68
  5. Step 5: Solve for x
    x = 3,442,976.68/2,209.85
  6. Step 6: Final answer
    x = 1,558.01

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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.