Home / 6,861.79-10,288.99-2,180.53

Finding the Fourth Proportional to 6,861.79, 10,288.99 and 2,180.53

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Solution

The fourth proportional to 6,861.79, 10,288.99 and 2,180.53 is: 3,269.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.79 : 10,288.99 = 2,180.53 : x
  2. Step 2: Convert to fraction form
    6,861.79/10,288.99 = 2,180.53/x
  3. Step 3: Cross multiply
    6,861.79x = 10,288.99 × 2,180.53
  4. Step 4: Simplify right side
    6,861.79x = 22,435,389.02
  5. Step 5: Solve for x
    x = 22,435,389.02/6,861.79
  6. Step 6: Final answer
    x = 3,269.61

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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.