Home / 6,861.78-10,289.62-2,479.27

Finding the Fourth Proportional to 6,861.78, 10,289.62 and 2,479.27

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Solution

The fourth proportional to 6,861.78, 10,289.62 and 2,479.27 is: 3,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.78 : 10,289.62 = 2,479.27 : x
  2. Step 2: Convert to fraction form
    6,861.78/10,289.62 = 2,479.27/x
  3. Step 3: Cross multiply
    6,861.78x = 10,289.62 × 2,479.27
  4. Step 4: Simplify right side
    6,861.78x = 25,510,746.18
  5. Step 5: Solve for x
    x = 25,510,746.18/6,861.78
  6. Step 6: Final answer
    x = 3,717.80

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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.