Home / 3,635.72-5,453.20-1,038.88

Finding the Fourth Proportional to 3,635.72, 5,453.20 and 1,038.88

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Solution

The fourth proportional to 3,635.72, 5,453.20 and 1,038.88 is: 1,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.72 : 5,453.20 = 1,038.88 : x
  2. Step 2: Convert to fraction form
    3,635.72/5,453.20 = 1,038.88/x
  3. Step 3: Cross multiply
    3,635.72x = 5,453.20 × 1,038.88
  4. Step 4: Simplify right side
    3,635.72x = 5,665,220.42
  5. Step 5: Solve for x
    x = 5,665,220.42/3,635.72
  6. Step 6: Final answer
    x = 1,558.21

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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.