Home / 6,619.92-9,929.86-4,156.47

Finding the Fourth Proportional to 6,619.92, 9,929.86 and 4,156.47

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Solution

The fourth proportional to 6,619.92, 9,929.86 and 4,156.47 is: 6,234.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.92 : 9,929.86 = 4,156.47 : x
  2. Step 2: Convert to fraction form
    6,619.92/9,929.86 = 4,156.47/x
  3. Step 3: Cross multiply
    6,619.92x = 9,929.86 × 4,156.47
  4. Step 4: Simplify right side
    6,619.92x = 41,273,152.29
  5. Step 5: Solve for x
    x = 41,273,152.29/6,619.92
  6. Step 6: Final answer
    x = 6,234.69

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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.