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Finding the Fourth Proportional to 3,864.56, 5,797.38 and 1,266.98

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Solution

The fourth proportional to 3,864.56, 5,797.38 and 1,266.98 is: 1,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.56 : 5,797.38 = 1,266.98 : x
  2. Step 2: Convert to fraction form
    3,864.56/5,797.38 = 1,266.98/x
  3. Step 3: Cross multiply
    3,864.56x = 5,797.38 × 1,266.98
  4. Step 4: Simplify right side
    3,864.56x = 7,345,164.51
  5. Step 5: Solve for x
    x = 7,345,164.51/3,864.56
  6. Step 6: Final answer
    x = 1,900.65

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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.