Home / 4,919.69-6,788.61-2,929.86

Finding the Fourth Proportional to 4,919.69, 6,788.61 and 2,929.86

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Solution

The fourth proportional to 4,919.69, 6,788.61 and 2,929.86 is: 4,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.69 : 6,788.61 = 2,929.86 : x
  2. Step 2: Convert to fraction form
    4,919.69/6,788.61 = 2,929.86/x
  3. Step 3: Cross multiply
    4,919.69x = 6,788.61 × 2,929.86
  4. Step 4: Simplify right side
    4,919.69x = 19,889,676.89
  5. Step 5: Solve for x
    x = 19,889,676.89/4,919.69
  6. Step 6: Final answer
    x = 4,042.88

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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.