Home / 3,619.46-5,425.50-1,427.30

Finding the Fourth Proportional to 3,619.46, 5,425.50 and 1,427.30

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Solution

The fourth proportional to 3,619.46, 5,425.50 and 1,427.30 is: 2,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.46 : 5,425.50 = 1,427.30 : x
  2. Step 2: Convert to fraction form
    3,619.46/5,425.50 = 1,427.30/x
  3. Step 3: Cross multiply
    3,619.46x = 5,425.50 × 1,427.30
  4. Step 4: Simplify right side
    3,619.46x = 7,743,816.15
  5. Step 5: Solve for x
    x = 7,743,816.15/3,619.46
  6. Step 6: Final answer
    x = 2,139.49

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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.