Home / 6,861.68-10,286.42-2,478.18

Finding the Fourth Proportional to 6,861.68, 10,286.42 and 2,478.18

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Solution

The fourth proportional to 6,861.68, 10,286.42 and 2,478.18 is: 3,715.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.68 : 10,286.42 = 2,478.18 : x
  2. Step 2: Convert to fraction form
    6,861.68/10,286.42 = 2,478.18/x
  3. Step 3: Cross multiply
    6,861.68x = 10,286.42 × 2,478.18
  4. Step 4: Simplify right side
    6,861.68x = 25,491,600.32
  5. Step 5: Solve for x
    x = 25,491,600.32/6,861.68
  6. Step 6: Final answer
    x = 3,715.07

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1.5x scale

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.