Home / 3,491.08-5,236.26-2,188.60

Finding the Fourth Proportional to 3,491.08, 5,236.26 and 2,188.60

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Solution

The fourth proportional to 3,491.08, 5,236.26 and 2,188.60 is: 3,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.08 : 5,236.26 = 2,188.60 : x
  2. Step 2: Convert to fraction form
    3,491.08/5,236.26 = 2,188.60/x
  3. Step 3: Cross multiply
    3,491.08x = 5,236.26 × 2,188.60
  4. Step 4: Simplify right side
    3,491.08x = 11,460,078.64
  5. Step 5: Solve for x
    x = 11,460,078.64/3,491.08
  6. Step 6: Final answer
    x = 3,282.67

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1.5x scale

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.