Home / 3,609.78-5,415.61-1,529.86

Finding the Fourth Proportional to 3,609.78, 5,415.61 and 1,529.86

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Solution

The fourth proportional to 3,609.78, 5,415.61 and 1,529.86 is: 2,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.78 : 5,415.61 = 1,529.86 : x
  2. Step 2: Convert to fraction form
    3,609.78/5,415.61 = 1,529.86/x
  3. Step 3: Cross multiply
    3,609.78x = 5,415.61 × 1,529.86
  4. Step 4: Simplify right side
    3,609.78x = 8,285,125.11
  5. Step 5: Solve for x
    x = 8,285,125.11/3,609.78
  6. Step 6: Final answer
    x = 2,295.19

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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.