Home / 3,188.88-4,396.68-2,631.60

Finding the Fourth Proportional to 3,188.88, 4,396.68 and 2,631.60

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Solution

The fourth proportional to 3,188.88, 4,396.68 and 2,631.60 is: 3,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.88 : 4,396.68 = 2,631.60 : x
  2. Step 2: Convert to fraction form
    3,188.88/4,396.68 = 2,631.60/x
  3. Step 3: Cross multiply
    3,188.88x = 4,396.68 × 2,631.60
  4. Step 4: Simplify right side
    3,188.88x = 11,570,303.09
  5. Step 5: Solve for x
    x = 11,570,303.09/3,188.88
  6. Step 6: Final answer
    x = 3,628.33

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1.5x scale

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.