Home / 3,631.20-5,436.96-1,896.32

Finding the Fourth Proportional to 3,631.20, 5,436.96 and 1,896.32

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Solution

The fourth proportional to 3,631.20, 5,436.96 and 1,896.32 is: 2,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.20 : 5,436.96 = 1,896.32 : x
  2. Step 2: Convert to fraction form
    3,631.20/5,436.96 = 1,896.32/x
  3. Step 3: Cross multiply
    3,631.20x = 5,436.96 × 1,896.32
  4. Step 4: Simplify right side
    3,631.20x = 10,310,215.99
  5. Step 5: Solve for x
    x = 10,310,215.99/3,631.20
  6. Step 6: Final answer
    x = 2,839.34

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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.