Home / 2,406.78-3,609.66-1,107.93

Finding the Fourth Proportional to 2,406.78, 3,609.66 and 1,107.93

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Solution

The fourth proportional to 2,406.78, 3,609.66 and 1,107.93 is: 1,661.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.78 : 3,609.66 = 1,107.93 : x
  2. Step 2: Convert to fraction form
    2,406.78/3,609.66 = 1,107.93/x
  3. Step 3: Cross multiply
    2,406.78x = 3,609.66 × 1,107.93
  4. Step 4: Simplify right side
    2,406.78x = 3,999,250.60
  5. Step 5: Solve for x
    x = 3,999,250.60/2,406.78
  6. Step 6: Final answer
    x = 1,661.66

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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.