Home / 3,630.82-5,446.80-1,439.50

Finding the Fourth Proportional to 3,630.82, 5,446.80 and 1,439.50

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Solution

The fourth proportional to 3,630.82, 5,446.80 and 1,439.50 is: 2,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.82 : 5,446.80 = 1,439.50 : x
  2. Step 2: Convert to fraction form
    3,630.82/5,446.80 = 1,439.50/x
  3. Step 3: Cross multiply
    3,630.82x = 5,446.80 × 1,439.50
  4. Step 4: Simplify right side
    3,630.82x = 7,840,668.60
  5. Step 5: Solve for x
    x = 7,840,668.60/3,630.82
  6. Step 6: Final answer
    x = 2,159.48

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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.