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Finding the Fourth Proportional to 4,253.66, 6,379.07 and 1,788.02

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Solution

The fourth proportional to 4,253.66, 6,379.07 and 1,788.02 is: 2,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.66 : 6,379.07 = 1,788.02 : x
  2. Step 2: Convert to fraction form
    4,253.66/6,379.07 = 1,788.02/x
  3. Step 3: Cross multiply
    4,253.66x = 6,379.07 × 1,788.02
  4. Step 4: Simplify right side
    4,253.66x = 11,405,863.91
  5. Step 5: Solve for x
    x = 11,405,863.91/4,253.66
  6. Step 6: Final answer
    x = 2,681.43

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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.