Home / 2,790.26-4,179.72-2,239.46

Finding the Fourth Proportional to 2,790.26, 4,179.72 and 2,239.46

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Solution

The fourth proportional to 2,790.26, 4,179.72 and 2,239.46 is: 3,354.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.26 : 4,179.72 = 2,239.46 : x
  2. Step 2: Convert to fraction form
    2,790.26/4,179.72 = 2,239.46/x
  3. Step 3: Cross multiply
    2,790.26x = 4,179.72 × 2,239.46
  4. Step 4: Simplify right side
    2,790.26x = 9,360,315.75
  5. Step 5: Solve for x
    x = 9,360,315.75/2,790.26
  6. Step 6: Final answer
    x = 3,354.64

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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.