Home / 3,609.59-5,412.19-1,415.69

Finding the Fourth Proportional to 3,609.59, 5,412.19 and 1,415.69

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Solution

The fourth proportional to 3,609.59, 5,412.19 and 1,415.69 is: 2,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.59 : 5,412.19 = 1,415.69 : x
  2. Step 2: Convert to fraction form
    3,609.59/5,412.19 = 1,415.69/x
  3. Step 3: Cross multiply
    3,609.59x = 5,412.19 × 1,415.69
  4. Step 4: Simplify right side
    3,609.59x = 7,661,983.26
  5. Step 5: Solve for x
    x = 7,661,983.26/3,609.59
  6. Step 6: Final answer
    x = 2,122.67

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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.