Home / 3,618.25-5,428.96-1,538.46

Finding the Fourth Proportional to 3,618.25, 5,428.96 and 1,538.46

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Solution

The fourth proportional to 3,618.25, 5,428.96 and 1,538.46 is: 2,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.25 : 5,428.96 = 1,538.46 : x
  2. Step 2: Convert to fraction form
    3,618.25/5,428.96 = 1,538.46/x
  3. Step 3: Cross multiply
    3,618.25x = 5,428.96 × 1,538.46
  4. Step 4: Simplify right side
    3,618.25x = 8,352,233.96
  5. Step 5: Solve for x
    x = 8,352,233.96/3,618.25
  6. Step 6: Final answer
    x = 2,308.36

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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.