Home / 3,618.62-5,430.42-1,427.36

Finding the Fourth Proportional to 3,618.62, 5,430.42 and 1,427.36

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Solution

The fourth proportional to 3,618.62, 5,430.42 and 1,427.36 is: 2,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.62 : 5,430.42 = 1,427.36 : x
  2. Step 2: Convert to fraction form
    3,618.62/5,430.42 = 1,427.36/x
  3. Step 3: Cross multiply
    3,618.62x = 5,430.42 × 1,427.36
  4. Step 4: Simplify right side
    3,618.62x = 7,751,164.29
  5. Step 5: Solve for x
    x = 7,751,164.29/3,618.62
  6. Step 6: Final answer
    x = 2,142.02

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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.