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Finding the Fourth Proportional to 2,808.56, 4,184.81 and 2,682.81

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Solution

The fourth proportional to 2,808.56, 4,184.81 and 2,682.81 is: 3,997.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.56 : 4,184.81 = 2,682.81 : x
  2. Step 2: Convert to fraction form
    2,808.56/4,184.81 = 2,682.81/x
  3. Step 3: Cross multiply
    2,808.56x = 4,184.81 × 2,682.81
  4. Step 4: Simplify right side
    2,808.56x = 11,227,050.12
  5. Step 5: Solve for x
    x = 11,227,050.12/2,808.56
  6. Step 6: Final answer
    x = 3,997.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.