Home / 3,631.72-5,450.02-3,618.36

Finding the Fourth Proportional to 3,631.72, 5,450.02 and 3,618.36

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Solution

The fourth proportional to 3,631.72, 5,450.02 and 3,618.36 is: 5,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.72 : 5,450.02 = 3,618.36 : x
  2. Step 2: Convert to fraction form
    3,631.72/5,450.02 = 3,618.36/x
  3. Step 3: Cross multiply
    3,631.72x = 5,450.02 × 3,618.36
  4. Step 4: Simplify right side
    3,631.72x = 19,720,134.37
  5. Step 5: Solve for x
    x = 19,720,134.37/3,631.72
  6. Step 6: Final answer
    x = 5,429.97

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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.