Home / 6,631.60-9,945.36-2,188.44

Finding the Fourth Proportional to 6,631.60, 9,945.36 and 2,188.44

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Solution

The fourth proportional to 6,631.60, 9,945.36 and 2,188.44 is: 3,281.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,631.60 : 9,945.36 = 2,188.44 : x
  2. Step 2: Convert to fraction form
    6,631.60/9,945.36 = 2,188.44/x
  3. Step 3: Cross multiply
    6,631.60x = 9,945.36 × 2,188.44
  4. Step 4: Simplify right side
    6,631.60x = 21,764,823.64
  5. Step 5: Solve for x
    x = 21,764,823.64/6,631.60
  6. Step 6: Final answer
    x = 3,281.99

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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.