Home / 3,538.20-5,309.46-1,459.20

Finding the Fourth Proportional to 3,538.20, 5,309.46 and 1,459.20

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Solution

The fourth proportional to 3,538.20, 5,309.46 and 1,459.20 is: 2,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.20 : 5,309.46 = 1,459.20 : x
  2. Step 2: Convert to fraction form
    3,538.20/5,309.46 = 1,459.20/x
  3. Step 3: Cross multiply
    3,538.20x = 5,309.46 × 1,459.20
  4. Step 4: Simplify right side
    3,538.20x = 7,747,564.03
  5. Step 5: Solve for x
    x = 7,747,564.03/3,538.20
  6. Step 6: Final answer
    x = 2,189.69

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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.