Home / 5,419.69-7,479.09-3,029.72

Finding the Fourth Proportional to 5,419.69, 7,479.09 and 3,029.72

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Solution

The fourth proportional to 5,419.69, 7,479.09 and 3,029.72 is: 4,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.69 : 7,479.09 = 3,029.72 : x
  2. Step 2: Convert to fraction form
    5,419.69/7,479.09 = 3,029.72/x
  3. Step 3: Cross multiply
    5,419.69x = 7,479.09 × 3,029.72
  4. Step 4: Simplify right side
    5,419.69x = 22,659,511.16
  5. Step 5: Solve for x
    x = 22,659,511.16/5,419.69
  6. Step 6: Final answer
    x = 4,180.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.