Home / 3,618.45-5,427.61-1,021.38

Finding the Fourth Proportional to 3,618.45, 5,427.61 and 1,021.38

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Solution

The fourth proportional to 3,618.45, 5,427.61 and 1,021.38 is: 1,532.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.45 : 5,427.61 = 1,021.38 : x
  2. Step 2: Convert to fraction form
    3,618.45/5,427.61 = 1,021.38/x
  3. Step 3: Cross multiply
    3,618.45x = 5,427.61 × 1,021.38
  4. Step 4: Simplify right side
    3,618.45x = 5,543,652.30
  5. Step 5: Solve for x
    x = 5,543,652.30/3,618.45
  6. Step 6: Final answer
    x = 1,532.05

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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.