Home / 11,240.31-16,860.33-2,919.59

Finding the Fourth Proportional to 11,240.31, 16,860.33 and 2,919.59

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Solution

The fourth proportional to 11,240.31, 16,860.33 and 2,919.59 is: 4,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.31 : 16,860.33 = 2,919.59 : x
  2. Step 2: Convert to fraction form
    11,240.31/16,860.33 = 2,919.59/x
  3. Step 3: Cross multiply
    11,240.31x = 16,860.33 × 2,919.59
  4. Step 4: Simplify right side
    11,240.31x = 49,225,166.56
  5. Step 5: Solve for x
    x = 49,225,166.56/11,240.31
  6. Step 6: Final answer
    x = 4,379.34

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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.