Home / 3,861.68-5,324.64-2,708.96

Finding the Fourth Proportional to 3,861.68, 5,324.64 and 2,708.96

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Solution

The fourth proportional to 3,861.68, 5,324.64 and 2,708.96 is: 3,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.68 : 5,324.64 = 2,708.96 : x
  2. Step 2: Convert to fraction form
    3,861.68/5,324.64 = 2,708.96/x
  3. Step 3: Cross multiply
    3,861.68x = 5,324.64 × 2,708.96
  4. Step 4: Simplify right side
    3,861.68x = 14,424,236.77
  5. Step 5: Solve for x
    x = 14,424,236.77/3,861.68
  6. Step 6: Final answer
    x = 3,735.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.