Home / 6,861.28-10,288.88-2,478.77

Finding the Fourth Proportional to 6,861.28, 10,288.88 and 2,478.77

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Solution

The fourth proportional to 6,861.28, 10,288.88 and 2,478.77 is: 3,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,861.28 : 10,288.88 = 2,478.77 : x
  2. Step 2: Convert to fraction form
    6,861.28/10,288.88 = 2,478.77/x
  3. Step 3: Cross multiply
    6,861.28x = 10,288.88 × 2,478.77
  4. Step 4: Simplify right side
    6,861.28x = 25,503,754.68
  5. Step 5: Solve for x
    x = 25,503,754.68/6,861.28
  6. Step 6: Final answer
    x = 3,717.06

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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.