Home / 3,806.72-5,256.96-2,764.32

Finding the Fourth Proportional to 3,806.72, 5,256.96 and 2,764.32

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Solution

The fourth proportional to 3,806.72, 5,256.96 and 2,764.32 is: 3,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.72 : 5,256.96 = 2,764.32 : x
  2. Step 2: Convert to fraction form
    3,806.72/5,256.96 = 2,764.32/x
  3. Step 3: Cross multiply
    3,806.72x = 5,256.96 × 2,764.32
  4. Step 4: Simplify right side
    3,806.72x = 14,531,919.67
  5. Step 5: Solve for x
    x = 14,531,919.67/3,806.72
  6. Step 6: Final answer
    x = 3,817.44

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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.