Home / 4,072.32-6,109.83-1,605.79

Finding the Fourth Proportional to 4,072.32, 6,109.83 and 1,605.79

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Solution

The fourth proportional to 4,072.32, 6,109.83 and 1,605.79 is: 2,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,072.32 : 6,109.83 = 1,605.79 : x
  2. Step 2: Convert to fraction form
    4,072.32/6,109.83 = 1,605.79/x
  3. Step 3: Cross multiply
    4,072.32x = 6,109.83 × 1,605.79
  4. Step 4: Simplify right side
    4,072.32x = 9,811,103.92
  5. Step 5: Solve for x
    x = 9,811,103.92/4,072.32
  6. Step 6: Final answer
    x = 2,409.22

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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.