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Finding the Fourth Proportional to 2,814.66, 4,221.74 and 1,254.74

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Solution

The fourth proportional to 2,814.66, 4,221.74 and 1,254.74 is: 1,882.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.66 : 4,221.74 = 1,254.74 : x
  2. Step 2: Convert to fraction form
    2,814.66/4,221.74 = 1,254.74/x
  3. Step 3: Cross multiply
    2,814.66x = 4,221.74 × 1,254.74
  4. Step 4: Simplify right side
    2,814.66x = 5,297,186.05
  5. Step 5: Solve for x
    x = 5,297,186.05/2,814.66
  6. Step 6: Final answer
    x = 1,882.00

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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.