Home / 2,631.62-3,631.64-1,436.60

Finding the Fourth Proportional to 2,631.62, 3,631.64 and 1,436.60

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Solution

The fourth proportional to 2,631.62, 3,631.64 and 1,436.60 is: 1,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.62 : 3,631.64 = 1,436.60 : x
  2. Step 2: Convert to fraction form
    2,631.62/3,631.64 = 1,436.60/x
  3. Step 3: Cross multiply
    2,631.62x = 3,631.64 × 1,436.60
  4. Step 4: Simplify right side
    2,631.62x = 5,217,188.68
  5. Step 5: Solve for x
    x = 5,217,188.68/2,631.62
  6. Step 6: Final answer
    x = 1,982.50

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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.