Home / 7,619.89-11,429.79-2,876.94

Finding the Fourth Proportional to 7,619.89, 11,429.79 and 2,876.94

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Solution

The fourth proportional to 7,619.89, 11,429.79 and 2,876.94 is: 4,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.89 : 11,429.79 = 2,876.94 : x
  2. Step 2: Convert to fraction form
    7,619.89/11,429.79 = 2,876.94/x
  3. Step 3: Cross multiply
    7,619.89x = 11,429.79 × 2,876.94
  4. Step 4: Simplify right side
    7,619.89x = 32,882,820.04
  5. Step 5: Solve for x
    x = 32,882,820.04/7,619.89
  6. Step 6: Final answer
    x = 4,315.39

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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.